Home / 10,117.92-13,959.36-6,137.76

Finding the Fourth Proportional to 10,117.92, 13,959.36 and 6,137.76

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Solution

The fourth proportional to 10,117.92, 13,959.36 and 6,137.76 is: 8,468.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,117.92 : 13,959.36 = 6,137.76 : x
  2. Step 2: Convert to fraction form
    10,117.92/13,959.36 = 6,137.76/x
  3. Step 3: Cross multiply
    10,117.92x = 13,959.36 × 6,137.76
  4. Step 4: Simplify right side
    10,117.92x = 85,679,201.43
  5. Step 5: Solve for x
    x = 85,679,201.43/10,117.92
  6. Step 6: Final answer
    x = 8,468.06

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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.