Home / 11,470.02-15,818.13-7,489.68

Finding the Fourth Proportional to 11,470.02, 15,818.13 and 7,489.68

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Solution

The fourth proportional to 11,470.02, 15,818.13 and 7,489.68 is: 10,328.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,470.02 : 15,818.13 = 7,489.68 : x
  2. Step 2: Convert to fraction form
    11,470.02/15,818.13 = 7,489.68/x
  3. Step 3: Cross multiply
    11,470.02x = 15,818.13 × 7,489.68
  4. Step 4: Simplify right side
    11,470.02x = 118,472,731.90
  5. Step 5: Solve for x
    x = 118,472,731.90/11,470.02
  6. Step 6: Final answer
    x = 10,328.90

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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.