Home / 8,876.28-12,249.31-4,897.40

Finding the Fourth Proportional to 8,876.28, 12,249.31 and 4,897.40

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Solution

The fourth proportional to 8,876.28, 12,249.31 and 4,897.40 is: 6,758.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,876.28 : 12,249.31 = 4,897.40 : x
  2. Step 2: Convert to fraction form
    8,876.28/12,249.31 = 4,897.40/x
  3. Step 3: Cross multiply
    8,876.28x = 12,249.31 × 4,897.40
  4. Step 4: Simplify right side
    8,876.28x = 59,989,697.30
  5. Step 5: Solve for x
    x = 59,989,697.30/8,876.28
  6. Step 6: Final answer
    x = 6,758.43

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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.