Home / 13,565.08-20,355.18-7,324.96

Finding the Fourth Proportional to 13,565.08, 20,355.18 and 7,324.96

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Solution

The fourth proportional to 13,565.08, 20,355.18 and 7,324.96 is: 10,991.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565.08 : 20,355.18 = 7,324.96 : x
  2. Step 2: Convert to fraction form
    13,565.08/20,355.18 = 7,324.96/x
  3. Step 3: Cross multiply
    13,565.08x = 20,355.18 × 7,324.96
  4. Step 4: Simplify right side
    13,565.08x = 149,100,879.29
  5. Step 5: Solve for x
    x = 149,100,879.29/13,565.08
  6. Step 6: Final answer
    x = 10,991.52

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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.