Home / 8,642.20-12,962.72-3,376.24

Finding the Fourth Proportional to 8,642.20, 12,962.72 and 3,376.24

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Solution

The fourth proportional to 8,642.20, 12,962.72 and 3,376.24 is: 5,064.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,642.20 : 12,962.72 = 3,376.24 : x
  2. Step 2: Convert to fraction form
    8,642.20/12,962.72 = 3,376.24/x
  3. Step 3: Cross multiply
    8,642.20x = 12,962.72 × 3,376.24
  4. Step 4: Simplify right side
    8,642.20x = 43,765,253.77
  5. Step 5: Solve for x
    x = 43,765,253.77/8,642.20
  6. Step 6: Final answer
    x = 5,064.13

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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.