Home / 10,917.32-16,375.91-3,126.13

Finding the Fourth Proportional to 10,917.32, 16,375.91 and 3,126.13

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Solution

The fourth proportional to 10,917.32, 16,375.91 and 3,126.13 is: 4,689.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,917.32 : 16,375.91 = 3,126.13 : x
  2. Step 2: Convert to fraction form
    10,917.32/16,375.91 = 3,126.13/x
  3. Step 3: Cross multiply
    10,917.32x = 16,375.91 × 3,126.13
  4. Step 4: Simplify right side
    10,917.32x = 51,193,166.96
  5. Step 5: Solve for x
    x = 51,193,166.96/10,917.32
  6. Step 6: Final answer
    x = 4,689.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.