Home / 12,301.10-18,447.15-3,983.30

Finding the Fourth Proportional to 12,301.10, 18,447.15 and 3,983.30

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Solution

The fourth proportional to 12,301.10, 18,447.15 and 3,983.30 is: 5,973.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,301.10 : 18,447.15 = 3,983.30 : x
  2. Step 2: Convert to fraction form
    12,301.10/18,447.15 = 3,983.30/x
  3. Step 3: Cross multiply
    12,301.10x = 18,447.15 × 3,983.30
  4. Step 4: Simplify right side
    12,301.10x = 73,480,532.60
  5. Step 5: Solve for x
    x = 73,480,532.60/12,301.10
  6. Step 6: Final answer
    x = 5,973.49

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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.