Home / 13,630.32-20,432.52-8,686.08

Finding the Fourth Proportional to 13,630.32, 20,432.52 and 8,686.08

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Solution

The fourth proportional to 13,630.32, 20,432.52 and 8,686.08 is: 13,020.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,630.32 : 20,432.52 = 8,686.08 : x
  2. Step 2: Convert to fraction form
    13,630.32/20,432.52 = 8,686.08/x
  3. Step 3: Cross multiply
    13,630.32x = 20,432.52 × 8,686.08
  4. Step 4: Simplify right side
    13,630.32x = 177,478,503.32
  5. Step 5: Solve for x
    x = 177,478,503.32/13,630.32
  6. Step 6: Final answer
    x = 13,020.86

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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.