Home / 15,654.20-21,602.64-8,580.58

Finding the Fourth Proportional to 15,654.20, 21,602.64 and 8,580.58

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Solution

The fourth proportional to 15,654.20, 21,602.64 and 8,580.58 is: 11,841.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,654.20 : 21,602.64 = 8,580.58 : x
  2. Step 2: Convert to fraction form
    15,654.20/21,602.64 = 8,580.58/x
  3. Step 3: Cross multiply
    15,654.20x = 21,602.64 × 8,580.58
  4. Step 4: Simplify right side
    15,654.20x = 185,363,180.73
  5. Step 5: Solve for x
    x = 185,363,180.73/15,654.20
  6. Step 6: Final answer
    x = 11,841.11

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1.5x scale

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.