Home / 8,728.38-13,091.14-2,401.78

Finding the Fourth Proportional to 8,728.38, 13,091.14 and 2,401.78

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Solution

The fourth proportional to 8,728.38, 13,091.14 and 2,401.78 is: 3,602.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,728.38 : 13,091.14 = 2,401.78 : x
  2. Step 2: Convert to fraction form
    8,728.38/13,091.14 = 2,401.78/x
  3. Step 3: Cross multiply
    8,728.38x = 13,091.14 × 2,401.78
  4. Step 4: Simplify right side
    8,728.38x = 31,442,038.23
  5. Step 5: Solve for x
    x = 31,442,038.23/8,728.38
  6. Step 6: Final answer
    x = 3,602.28

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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.