Home / 14,880.12-20,534.16-8,165.70

Finding the Fourth Proportional to 14,880.12, 20,534.16 and 8,165.70

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Solution

The fourth proportional to 14,880.12, 20,534.16 and 8,165.70 is: 11,268.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,880.12 : 20,534.16 = 8,165.70 : x
  2. Step 2: Convert to fraction form
    14,880.12/20,534.16 = 8,165.70/x
  3. Step 3: Cross multiply
    14,880.12x = 20,534.16 × 8,165.70
  4. Step 4: Simplify right side
    14,880.12x = 167,675,790.31
  5. Step 5: Solve for x
    x = 167,675,790.31/14,880.12
  6. Step 6: Final answer
    x = 11,268.44

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Half scale
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Double scale
Find fourth proportional to 14,881.12, 20,535.54 and 8,166.70
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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.