Home / 13,562.10-20,343.15-8,911.69

Finding the Fourth Proportional to 13,562.10, 20,343.15 and 8,911.69

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Solution

The fourth proportional to 13,562.10, 20,343.15 and 8,911.69 is: 13,367.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,562.10 : 20,343.15 = 8,911.69 : x
  2. Step 2: Convert to fraction form
    13,562.10/20,343.15 = 8,911.69/x
  3. Step 3: Cross multiply
    13,562.10x = 20,343.15 × 8,911.69
  4. Step 4: Simplify right side
    13,562.10x = 181,291,795.57
  5. Step 5: Solve for x
    x = 181,291,795.57/13,562.10
  6. Step 6: Final answer
    x = 13,367.53

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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.