Home / 18,238.10-27,346.20-7,131.55

Finding the Fourth Proportional to 18,238.10, 27,346.20 and 7,131.55

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Solution

The fourth proportional to 18,238.10, 27,346.20 and 7,131.55 is: 10,693.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,238.10 : 27,346.20 = 7,131.55 : x
  2. Step 2: Convert to fraction form
    18,238.10/27,346.20 = 7,131.55/x
  3. Step 3: Cross multiply
    18,238.10x = 27,346.20 × 7,131.55
  4. Step 4: Simplify right side
    18,238.10x = 195,020,792.61
  5. Step 5: Solve for x
    x = 195,020,792.61/18,238.10
  6. Step 6: Final answer
    x = 10,693.04

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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.