Home / 15,160.08-20,920.92-8,446.32

Finding the Fourth Proportional to 15,160.08, 20,920.92 and 8,446.32

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Solution

The fourth proportional to 15,160.08, 20,920.92 and 8,446.32 is: 11,655.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,160.08 : 20,920.92 = 8,446.32 : x
  2. Step 2: Convert to fraction form
    15,160.08/20,920.92 = 8,446.32/x
  3. Step 3: Cross multiply
    15,160.08x = 20,920.92 × 8,446.32
  4. Step 4: Simplify right side
    15,160.08x = 176,704,785.01
  5. Step 5: Solve for x
    x = 176,704,785.01/15,160.08
  6. Step 6: Final answer
    x = 11,655.93

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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.