Home / 8,787.18-12,126.29-4,808.28

Finding the Fourth Proportional to 8,787.18, 12,126.29 and 4,808.28

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Solution

The fourth proportional to 8,787.18, 12,126.29 and 4,808.28 is: 6,635.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787.18 : 12,126.29 = 4,808.28 : x
  2. Step 2: Convert to fraction form
    8,787.18/12,126.29 = 4,808.28/x
  3. Step 3: Cross multiply
    8,787.18x = 12,126.29 × 4,808.28
  4. Step 4: Simplify right side
    8,787.18x = 58,306,597.68
  5. Step 5: Solve for x
    x = 58,306,597.68/8,787.18
  6. Step 6: Final answer
    x = 6,635.42

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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.