Home / 13,773.12-20,631.36-9,316.80

Finding the Fourth Proportional to 13,773.12, 20,631.36 and 9,316.80

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Solution

The fourth proportional to 13,773.12, 20,631.36 and 9,316.80 is: 13,956.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,773.12 : 20,631.36 = 9,316.80 : x
  2. Step 2: Convert to fraction form
    13,773.12/20,631.36 = 9,316.80/x
  3. Step 3: Cross multiply
    13,773.12x = 20,631.36 × 9,316.80
  4. Step 4: Simplify right side
    13,773.12x = 192,218,254.85
  5. Step 5: Solve for x
    x = 192,218,254.85/13,773.12
  6. Step 6: Final answer
    x = 13,956.04

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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.