Home / 8,787.42-12,126.94-5,011.14

Finding the Fourth Proportional to 8,787.42, 12,126.94 and 5,011.14

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Solution

The fourth proportional to 8,787.42, 12,126.94 and 5,011.14 is: 6,915.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787.42 : 12,126.94 = 5,011.14 : x
  2. Step 2: Convert to fraction form
    8,787.42/12,126.94 = 5,011.14/x
  3. Step 3: Cross multiply
    8,787.42x = 12,126.94 × 5,011.14
  4. Step 4: Simplify right side
    8,787.42x = 60,769,794.11
  5. Step 5: Solve for x
    x = 60,769,794.11/8,787.42
  6. Step 6: Final answer
    x = 6,915.54

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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.