Home / 10,489.26-15,720.12-4,632.96

Finding the Fourth Proportional to 10,489.26, 15,720.12 and 4,632.96

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Solution

The fourth proportional to 10,489.26, 15,720.12 and 4,632.96 is: 6,943.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,489.26 : 15,720.12 = 4,632.96 : x
  2. Step 2: Convert to fraction form
    10,489.26/15,720.12 = 4,632.96/x
  3. Step 3: Cross multiply
    10,489.26x = 15,720.12 × 4,632.96
  4. Step 4: Simplify right side
    10,489.26x = 72,830,687.16
  5. Step 5: Solve for x
    x = 72,830,687.16/10,489.26
  6. Step 6: Final answer
    x = 6,943.36

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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.