Home / 8,918.30-13,378.25-2,344.38

Finding the Fourth Proportional to 8,918.30, 13,378.25 and 2,344.38

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Solution

The fourth proportional to 8,918.30, 13,378.25 and 2,344.38 is: 3,516.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,918.30 : 13,378.25 = 2,344.38 : x
  2. Step 2: Convert to fraction form
    8,918.30/13,378.25 = 2,344.38/x
  3. Step 3: Cross multiply
    8,918.30x = 13,378.25 × 2,344.38
  4. Step 4: Simplify right side
    8,918.30x = 31,363,701.74
  5. Step 5: Solve for x
    x = 31,363,701.74/8,918.30
  6. Step 6: Final answer
    x = 3,516.78

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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.