Home / 10,340.02-15,489.20-4,785.70

Finding the Fourth Proportional to 10,340.02, 15,489.20 and 4,785.70

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Solution

The fourth proportional to 10,340.02, 15,489.20 and 4,785.70 is: 7,168.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,340.02 : 15,489.20 = 4,785.70 : x
  2. Step 2: Convert to fraction form
    10,340.02/15,489.20 = 4,785.70/x
  3. Step 3: Cross multiply
    10,340.02x = 15,489.20 × 4,785.70
  4. Step 4: Simplify right side
    10,340.02x = 74,126,664.44
  5. Step 5: Solve for x
    x = 74,126,664.44/10,340.02
  6. Step 6: Final answer
    x = 7,168.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.