Home / 15,956.42-22,020.38-8,787.10

Finding the Fourth Proportional to 15,956.42, 22,020.38 and 8,787.10

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Solution

The fourth proportional to 15,956.42, 22,020.38 and 8,787.10 is: 12,126.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,956.42 : 22,020.38 = 8,787.10 : x
  2. Step 2: Convert to fraction form
    15,956.42/22,020.38 = 8,787.10/x
  3. Step 3: Cross multiply
    15,956.42x = 22,020.38 × 8,787.10
  4. Step 4: Simplify right side
    15,956.42x = 193,495,281.10
  5. Step 5: Solve for x
    x = 193,495,281.10/15,956.42
  6. Step 6: Final answer
    x = 12,126.48

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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.