Home / 12,642.04-18,962.94-4,321.96

Finding the Fourth Proportional to 12,642.04, 18,962.94 and 4,321.96

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Solution

The fourth proportional to 12,642.04, 18,962.94 and 4,321.96 is: 6,482.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,642.04 : 18,962.94 = 4,321.96 : x
  2. Step 2: Convert to fraction form
    12,642.04/18,962.94 = 4,321.96/x
  3. Step 3: Cross multiply
    12,642.04x = 18,962.94 × 4,321.96
  4. Step 4: Simplify right side
    12,642.04x = 81,957,068.16
  5. Step 5: Solve for x
    x = 81,957,068.16/12,642.04
  6. Step 6: Final answer
    x = 6,482.90

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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.