Home / 15,652.55-21,600.39-8,578.96

Finding the Fourth Proportional to 15,652.55, 21,600.39 and 8,578.96

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Solution

The fourth proportional to 15,652.55, 21,600.39 and 8,578.96 is: 11,838.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,652.55 : 21,600.39 = 8,578.96 : x
  2. Step 2: Convert to fraction form
    15,652.55/21,600.39 = 8,578.96/x
  3. Step 3: Cross multiply
    15,652.55x = 21,600.39 × 8,578.96
  4. Step 4: Simplify right side
    15,652.55x = 185,308,773.79
  5. Step 5: Solve for x
    x = 185,308,773.79/15,652.55
  6. Step 6: Final answer
    x = 11,838.89

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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.