Home / 8,754.30-12,083.64-5,398.18

Finding the Fourth Proportional to 8,754.30, 12,083.64 and 5,398.18

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Solution

The fourth proportional to 8,754.30, 12,083.64 and 5,398.18 is: 7,451.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,754.30 : 12,083.64 = 5,398.18 : x
  2. Step 2: Convert to fraction form
    8,754.30/12,083.64 = 5,398.18/x
  3. Step 3: Cross multiply
    8,754.30x = 12,083.64 × 5,398.18
  4. Step 4: Simplify right side
    8,754.30x = 65,229,663.78
  5. Step 5: Solve for x
    x = 65,229,663.78/8,754.30
  6. Step 6: Final answer
    x = 7,451.16

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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.