Home / 9,172.92-12,658.56-4,981.20

Finding the Fourth Proportional to 9,172.92, 12,658.56 and 4,981.20

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Solution

The fourth proportional to 9,172.92, 12,658.56 and 4,981.20 is: 6,874.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,172.92 : 12,658.56 = 4,981.20 : x
  2. Step 2: Convert to fraction form
    9,172.92/12,658.56 = 4,981.20/x
  3. Step 3: Cross multiply
    9,172.92x = 12,658.56 × 4,981.20
  4. Step 4: Simplify right side
    9,172.92x = 63,054,819.07
  5. Step 5: Solve for x
    x = 63,054,819.07/9,172.92
  6. Step 6: Final answer
    x = 6,874.02

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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.