Home / 11,003.60-16,505.40-10,158.80

Finding the Fourth Proportional to 11,003.60, 16,505.40 and 10,158.80

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Solution

The fourth proportional to 11,003.60, 16,505.40 and 10,158.80 is: 15,238.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,003.60 : 16,505.40 = 10,158.80 : x
  2. Step 2: Convert to fraction form
    11,003.60/16,505.40 = 10,158.80/x
  3. Step 3: Cross multiply
    11,003.60x = 16,505.40 × 10,158.80
  4. Step 4: Simplify right side
    11,003.60x = 167,675,057.52
  5. Step 5: Solve for x
    x = 167,675,057.52/11,003.60
  6. Step 6: Final answer
    x = 15,238.20

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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.