Home / 13,565.40-20,323.80-12,010.20

Finding the Fourth Proportional to 13,565.40, 20,323.80 and 12,010.20

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Solution

The fourth proportional to 13,565.40, 20,323.80 and 12,010.20 is: 17,993.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565.40 : 20,323.80 = 12,010.20 : x
  2. Step 2: Convert to fraction form
    13,565.40/20,323.80 = 12,010.20/x
  3. Step 3: Cross multiply
    13,565.40x = 20,323.80 × 12,010.20
  4. Step 4: Simplify right side
    13,565.40x = 244,092,902.76
  5. Step 5: Solve for x
    x = 244,092,902.76/13,565.40
  6. Step 6: Final answer
    x = 17,993.79

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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.