Home / 10,480.68-14,445.54-8,780.04

Finding the Fourth Proportional to 10,480.68, 14,445.54 and 8,780.04

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Solution

The fourth proportional to 10,480.68, 14,445.54 and 8,780.04 is: 12,101.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,480.68 : 14,445.54 = 8,780.04 : x
  2. Step 2: Convert to fraction form
    10,480.68/14,445.54 = 8,780.04/x
  3. Step 3: Cross multiply
    10,480.68x = 14,445.54 × 8,780.04
  4. Step 4: Simplify right side
    10,480.68x = 126,832,419.02
  5. Step 5: Solve for x
    x = 126,832,419.02/10,480.68
  6. Step 6: Final answer
    x = 12,101.54

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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.