Home / 8,788.28-12,127.38-5,011.60

Finding the Fourth Proportional to 8,788.28, 12,127.38 and 5,011.60

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Solution

The fourth proportional to 8,788.28, 12,127.38 and 5,011.60 is: 6,915.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,788.28 : 12,127.38 = 5,011.60 : x
  2. Step 2: Convert to fraction form
    8,788.28/12,127.38 = 5,011.60/x
  3. Step 3: Cross multiply
    8,788.28x = 12,127.38 × 5,011.60
  4. Step 4: Simplify right side
    8,788.28x = 60,777,577.61
  5. Step 5: Solve for x
    x = 60,777,577.61/8,788.28
  6. Step 6: Final answer
    x = 6,915.75

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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.