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Finding the Fourth Proportional to 8,165.81, 11,268.50 and 4,808.77

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Solution

The fourth proportional to 8,165.81, 11,268.50 and 4,808.77 is: 6,635.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,165.81 : 11,268.50 = 4,808.77 : x
  2. Step 2: Convert to fraction form
    8,165.81/11,268.50 = 4,808.77/x
  3. Step 3: Cross multiply
    8,165.81x = 11,268.50 × 4,808.77
  4. Step 4: Simplify right side
    8,165.81x = 54,187,572.53
  5. Step 5: Solve for x
    x = 54,187,572.53/8,165.81
  6. Step 6: Final answer
    x = 6,635.91

Related Problems

Find fourth proportional to 4,082.91, 5,634.25 and 2,404.38
Half scale
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Double scale
Find fourth proportional to 8,166.81, 11,269.87 and 4,809.77
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.