Home / 10,988.53-16,471.77-5,445.90

Finding the Fourth Proportional to 10,988.53, 16,471.77 and 5,445.90

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Solution

The fourth proportional to 10,988.53, 16,471.77 and 5,445.90 is: 8,163.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,988.53 : 16,471.77 = 5,445.90 : x
  2. Step 2: Convert to fraction form
    10,988.53/16,471.77 = 5,445.90/x
  3. Step 3: Cross multiply
    10,988.53x = 16,471.77 × 5,445.90
  4. Step 4: Simplify right side
    10,988.53x = 89,703,612.24
  5. Step 5: Solve for x
    x = 89,703,612.24/10,988.53
  6. Step 6: Final answer
    x = 8,163.39

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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.