Home / 12,312.23-18,468.59-3,992.22

Finding the Fourth Proportional to 12,312.23, 18,468.59 and 3,992.22

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Solution

The fourth proportional to 12,312.23, 18,468.59 and 3,992.22 is: 5,988.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,312.23 : 18,468.59 = 3,992.22 : x
  2. Step 2: Convert to fraction form
    12,312.23/18,468.59 = 3,992.22/x
  3. Step 3: Cross multiply
    12,312.23x = 18,468.59 × 3,992.22
  4. Step 4: Simplify right side
    12,312.23x = 73,730,654.41
  5. Step 5: Solve for x
    x = 73,730,654.41/12,312.23
  6. Step 6: Final answer
    x = 5,988.41

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Half scale
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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.