Home / 12,321.61-18,482.65-4,001.63

Finding the Fourth Proportional to 12,321.61, 18,482.65 and 4,001.63

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Solution

The fourth proportional to 12,321.61, 18,482.65 and 4,001.63 is: 6,002.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,321.61 : 18,482.65 = 4,001.63 : x
  2. Step 2: Convert to fraction form
    12,321.61/18,482.65 = 4,001.63/x
  3. Step 3: Cross multiply
    12,321.61x = 18,482.65 × 4,001.63
  4. Step 4: Simplify right side
    12,321.61x = 73,960,624.30
  5. Step 5: Solve for x
    x = 73,960,624.30/12,321.61
  6. Step 6: Final answer
    x = 6,002.51

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Double scale
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Similar ratio
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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.