Home / 10,404.24-15,607.20-3,478.80

Finding the Fourth Proportional to 10,404.24, 15,607.20 and 3,478.80

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Solution

The fourth proportional to 10,404.24, 15,607.20 and 3,478.80 is: 5,218.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,404.24 : 15,607.20 = 3,478.80 : x
  2. Step 2: Convert to fraction form
    10,404.24/15,607.20 = 3,478.80/x
  3. Step 3: Cross multiply
    10,404.24x = 15,607.20 × 3,478.80
  4. Step 4: Simplify right side
    10,404.24x = 54,294,327.36
  5. Step 5: Solve for x
    x = 54,294,327.36/10,404.24
  6. Step 6: Final answer
    x = 5,218.48

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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.