Home / 8,728.74-12,044.68-5,143.46

Finding the Fourth Proportional to 8,728.74, 12,044.68 and 5,143.46

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Solution

The fourth proportional to 8,728.74, 12,044.68 and 5,143.46 is: 7,097.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,728.74 : 12,044.68 = 5,143.46 : x
  2. Step 2: Convert to fraction form
    8,728.74/12,044.68 = 5,143.46/x
  3. Step 3: Cross multiply
    8,728.74x = 12,044.68 × 5,143.46
  4. Step 4: Simplify right side
    8,728.74x = 61,951,360.87
  5. Step 5: Solve for x
    x = 61,951,360.87/8,728.74
  6. Step 6: Final answer
    x = 7,097.40

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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.