Home / 11,645.38-16,070.11-6,340.20

Finding the Fourth Proportional to 11,645.38, 16,070.11 and 6,340.20

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Solution

The fourth proportional to 11,645.38, 16,070.11 and 6,340.20 is: 8,749.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,645.38 : 16,070.11 = 6,340.20 : x
  2. Step 2: Convert to fraction form
    11,645.38/16,070.11 = 6,340.20/x
  3. Step 3: Cross multiply
    11,645.38x = 16,070.11 × 6,340.20
  4. Step 4: Simplify right side
    11,645.38x = 101,887,711.42
  5. Step 5: Solve for x
    x = 101,887,711.42/11,645.38
  6. Step 6: Final answer
    x = 8,749.20

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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.