Home / 10,446.24-15,669.12-3,520.80

Finding the Fourth Proportional to 10,446.24, 15,669.12 and 3,520.80

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Solution

The fourth proportional to 10,446.24, 15,669.12 and 3,520.80 is: 5,281.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,446.24 : 15,669.12 = 3,520.80 : x
  2. Step 2: Convert to fraction form
    10,446.24/15,669.12 = 3,520.80/x
  3. Step 3: Cross multiply
    10,446.24x = 15,669.12 × 3,520.80
  4. Step 4: Simplify right side
    10,446.24x = 55,167,837.70
  5. Step 5: Solve for x
    x = 55,167,837.70/10,446.24
  6. Step 6: Final answer
    x = 5,281.12

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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.