Home / 15,591.64-21,516.46-8,876.92

Finding the Fourth Proportional to 15,591.64, 21,516.46 and 8,876.92

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Solution

The fourth proportional to 15,591.64, 21,516.46 and 8,876.92 is: 12,250.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,591.64 : 21,516.46 = 8,876.92 : x
  2. Step 2: Convert to fraction form
    15,591.64/21,516.46 = 8,876.92/x
  3. Step 3: Cross multiply
    15,591.64x = 21,516.46 × 8,876.92
  4. Step 4: Simplify right side
    15,591.64x = 190,999,894.10
  5. Step 5: Solve for x
    x = 190,999,894.10/15,591.64
  6. Step 6: Final answer
    x = 12,250.15

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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.