Home / 8,621.92-12,932.97-4,724.20

Finding the Fourth Proportional to 8,621.92, 12,932.97 and 4,724.20

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Solution

The fourth proportional to 8,621.92, 12,932.97 and 4,724.20 is: 7,086.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,621.92 : 12,932.97 = 4,724.20 : x
  2. Step 2: Convert to fraction form
    8,621.92/12,932.97 = 4,724.20/x
  3. Step 3: Cross multiply
    8,621.92x = 12,932.97 × 4,724.20
  4. Step 4: Simplify right side
    8,621.92x = 61,097,935.32
  5. Step 5: Solve for x
    x = 61,097,935.32/8,621.92
  6. Step 6: Final answer
    x = 7,086.35

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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.