Home / 13,446.12-20,151.66-6,866.76

Finding the Fourth Proportional to 13,446.12, 20,151.66 and 6,866.76

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Solution

The fourth proportional to 13,446.12, 20,151.66 and 6,866.76 is: 10,291.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,446.12 : 20,151.66 = 6,866.76 : x
  2. Step 2: Convert to fraction form
    13,446.12/20,151.66 = 6,866.76/x
  3. Step 3: Cross multiply
    13,446.12x = 20,151.66 × 6,866.76
  4. Step 4: Simplify right side
    13,446.12x = 138,376,612.82
  5. Step 5: Solve for x
    x = 138,376,612.82/13,446.12
  6. Step 6: Final answer
    x = 10,291.19

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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.