Home / 8,337.20-12,505.79-2,181.20

Finding the Fourth Proportional to 8,337.20, 12,505.79 and 2,181.20

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Solution

The fourth proportional to 8,337.20, 12,505.79 and 2,181.20 is: 3,271.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,337.20 : 12,505.79 = 2,181.20 : x
  2. Step 2: Convert to fraction form
    8,337.20/12,505.79 = 2,181.20/x
  3. Step 3: Cross multiply
    8,337.20x = 12,505.79 × 2,181.20
  4. Step 4: Simplify right side
    8,337.20x = 27,277,555.71
  5. Step 5: Solve for x
    x = 27,277,555.71/8,337.20
  6. Step 6: Final answer
    x = 3,271.79

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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.