Home / 8,140.28-11,229.70-4,737.29

Finding the Fourth Proportional to 8,140.28, 11,229.70 and 4,737.29

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Solution

The fourth proportional to 8,140.28, 11,229.70 and 4,737.29 is: 6,535.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140.28 : 11,229.70 = 4,737.29 : x
  2. Step 2: Convert to fraction form
    8,140.28/11,229.70 = 4,737.29/x
  3. Step 3: Cross multiply
    8,140.28x = 11,229.70 × 4,737.29
  4. Step 4: Simplify right side
    8,140.28x = 53,198,345.51
  5. Step 5: Solve for x
    x = 53,198,345.51/8,140.28
  6. Step 6: Final answer
    x = 6,535.20

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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.