Home / 14,805.92-20,432.45-8,091.36

Finding the Fourth Proportional to 14,805.92, 20,432.45 and 8,091.36

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Solution

The fourth proportional to 14,805.92, 20,432.45 and 8,091.36 is: 11,166.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,805.92 : 20,432.45 = 8,091.36 : x
  2. Step 2: Convert to fraction form
    14,805.92/20,432.45 = 8,091.36/x
  3. Step 3: Cross multiply
    14,805.92x = 20,432.45 × 8,091.36
  4. Step 4: Simplify right side
    14,805.92x = 165,326,328.86
  5. Step 5: Solve for x
    x = 165,326,328.86/14,805.92
  6. Step 6: Final answer
    x = 11,166.23

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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.