Home / 18,343.86-25,314.21-9,960.18

Finding the Fourth Proportional to 18,343.86, 25,314.21 and 9,960.18

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Solution

The fourth proportional to 18,343.86, 25,314.21 and 9,960.18 is: 13,744.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,343.86 : 25,314.21 = 9,960.18 : x
  2. Step 2: Convert to fraction form
    18,343.86/25,314.21 = 9,960.18/x
  3. Step 3: Cross multiply
    18,343.86x = 25,314.21 × 9,960.18
  4. Step 4: Simplify right side
    18,343.86x = 252,134,088.16
  5. Step 5: Solve for x
    x = 252,134,088.16/18,343.86
  6. Step 6: Final answer
    x = 13,744.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.