Home / 15,612.60-21,552.82-9,647.76

Finding the Fourth Proportional to 15,612.60, 21,552.82 and 9,647.76

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Solution

The fourth proportional to 15,612.60, 21,552.82 and 9,647.76 is: 13,318.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,612.60 : 21,552.82 = 9,647.76 : x
  2. Step 2: Convert to fraction form
    15,612.60/21,552.82 = 9,647.76/x
  3. Step 3: Cross multiply
    15,612.60x = 21,552.82 × 9,647.76
  4. Step 4: Simplify right side
    15,612.60x = 207,936,434.68
  5. Step 5: Solve for x
    x = 207,936,434.68/15,612.60
  6. Step 6: Final answer
    x = 13,318.50

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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.