Home / 13,731.12-20,592.63-7,153.92

Finding the Fourth Proportional to 13,731.12, 20,592.63 and 7,153.92

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Solution

The fourth proportional to 13,731.12, 20,592.63 and 7,153.92 is: 10,728.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731.12 : 20,592.63 = 7,153.92 : x
  2. Step 2: Convert to fraction form
    13,731.12/20,592.63 = 7,153.92/x
  3. Step 3: Cross multiply
    13,731.12x = 20,592.63 × 7,153.92
  4. Step 4: Simplify right side
    13,731.12x = 147,318,027.61
  5. Step 5: Solve for x
    x = 147,318,027.61/13,731.12
  6. Step 6: Final answer
    x = 10,728.77

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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.