Home / 10,350.80-15,526.24-5,421.90

Finding the Fourth Proportional to 10,350.80, 15,526.24 and 5,421.90

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Solution

The fourth proportional to 10,350.80, 15,526.24 and 5,421.90 is: 8,132.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,350.80 : 15,526.24 = 5,421.90 : x
  2. Step 2: Convert to fraction form
    10,350.80/15,526.24 = 5,421.90/x
  3. Step 3: Cross multiply
    10,350.80x = 15,526.24 × 5,421.90
  4. Step 4: Simplify right side
    10,350.80x = 84,181,720.66
  5. Step 5: Solve for x
    x = 84,181,720.66/10,350.80
  6. Step 6: Final answer
    x = 8,132.87

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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.