Home / 18,379.60-25,364.28-9,996.16

Finding the Fourth Proportional to 18,379.60, 25,364.28 and 9,996.16

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Solution

The fourth proportional to 18,379.60, 25,364.28 and 9,996.16 is: 13,794.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,379.60 : 25,364.28 = 9,996.16 : x
  2. Step 2: Convert to fraction form
    18,379.60/25,364.28 = 9,996.16/x
  3. Step 3: Cross multiply
    18,379.60x = 25,364.28 × 9,996.16
  4. Step 4: Simplify right side
    18,379.60x = 253,545,401.16
  5. Step 5: Solve for x
    x = 253,545,401.16/18,379.60
  6. Step 6: Final answer
    x = 13,794.94

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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.