Home / 10,490.31-15,739.11-4,651.02

Finding the Fourth Proportional to 10,490.31, 15,739.11 and 4,651.02

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Solution

The fourth proportional to 10,490.31, 15,739.11 and 4,651.02 is: 6,978.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,490.31 : 15,739.11 = 4,651.02 : x
  2. Step 2: Convert to fraction form
    10,490.31/15,739.11 = 4,651.02/x
  3. Step 3: Cross multiply
    10,490.31x = 15,739.11 × 4,651.02
  4. Step 4: Simplify right side
    10,490.31x = 73,202,915.39
  5. Step 5: Solve for x
    x = 73,202,915.39/10,490.31
  6. Step 6: Final answer
    x = 6,978.15

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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.