Home / 8,116.80-11,214.24-7,494.72

Finding the Fourth Proportional to 8,116.80, 11,214.24 and 7,494.72

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Solution

The fourth proportional to 8,116.80, 11,214.24 and 7,494.72 is: 10,354.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,116.80 : 11,214.24 = 7,494.72 : x
  2. Step 2: Convert to fraction form
    8,116.80/11,214.24 = 7,494.72/x
  3. Step 3: Cross multiply
    8,116.80x = 11,214.24 × 7,494.72
  4. Step 4: Simplify right side
    8,116.80x = 84,047,588.81
  5. Step 5: Solve for x
    x = 84,047,588.81/8,116.80
  6. Step 6: Final answer
    x = 10,354.77

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Half scale
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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.