Home / 10,489.12-15,733.80-3,564.16

Finding the Fourth Proportional to 10,489.12, 15,733.80 and 3,564.16

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Solution

The fourth proportional to 10,489.12, 15,733.80 and 3,564.16 is: 5,346.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,489.12 : 15,733.80 = 3,564.16 : x
  2. Step 2: Convert to fraction form
    10,489.12/15,733.80 = 3,564.16/x
  3. Step 3: Cross multiply
    10,489.12x = 15,733.80 × 3,564.16
  4. Step 4: Simplify right side
    10,489.12x = 56,077,780.61
  5. Step 5: Solve for x
    x = 56,077,780.61/10,489.12
  6. Step 6: Final answer
    x = 5,346.28

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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.