Home / 8,787.53-12,126.43-5,252.69

Finding the Fourth Proportional to 8,787.53, 12,126.43 and 5,252.69

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Solution

The fourth proportional to 8,787.53, 12,126.43 and 5,252.69 is: 7,248.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787.53 : 12,126.43 = 5,252.69 : x
  2. Step 2: Convert to fraction form
    8,787.53/12,126.43 = 5,252.69/x
  3. Step 3: Cross multiply
    8,787.53x = 12,126.43 × 5,252.69
  4. Step 4: Simplify right side
    8,787.53x = 63,696,377.60
  5. Step 5: Solve for x
    x = 63,696,377.60/8,787.53
  6. Step 6: Final answer
    x = 7,248.50

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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.