Home / 15,627.52-21,566.10-9,657.82

Finding the Fourth Proportional to 15,627.52, 21,566.10 and 9,657.82

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Solution

The fourth proportional to 15,627.52, 21,566.10 and 9,657.82 is: 13,327.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,627.52 : 21,566.10 = 9,657.82 : x
  2. Step 2: Convert to fraction form
    15,627.52/21,566.10 = 9,657.82/x
  3. Step 3: Cross multiply
    15,627.52x = 21,566.10 × 9,657.82
  4. Step 4: Simplify right side
    15,627.52x = 208,281,511.90
  5. Step 5: Solve for x
    x = 208,281,511.90/15,627.52
  6. Step 6: Final answer
    x = 13,327.87

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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.