Home / 8,972.78-13,458.11-2,399.48

Finding the Fourth Proportional to 8,972.78, 13,458.11 and 2,399.48

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Solution

The fourth proportional to 8,972.78, 13,458.11 and 2,399.48 is: 3,598.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,972.78 : 13,458.11 = 2,399.48 : x
  2. Step 2: Convert to fraction form
    8,972.78/13,458.11 = 2,399.48/x
  3. Step 3: Cross multiply
    8,972.78x = 13,458.11 × 2,399.48
  4. Step 4: Simplify right side
    8,972.78x = 32,292,398.49
  5. Step 5: Solve for x
    x = 32,292,398.49/8,972.78
  6. Step 6: Final answer
    x = 3,598.93

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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.