Home / 12,659.13-18,988.70-8,433.44

Finding the Fourth Proportional to 12,659.13, 18,988.70 and 8,433.44

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Solution

The fourth proportional to 12,659.13, 18,988.70 and 8,433.44 is: 12,650.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,659.13 : 18,988.70 = 8,433.44 : x
  2. Step 2: Convert to fraction form
    12,659.13/18,988.70 = 8,433.44/x
  3. Step 3: Cross multiply
    12,659.13x = 18,988.70 × 8,433.44
  4. Step 4: Simplify right side
    12,659.13x = 160,139,925.02
  5. Step 5: Solve for x
    x = 160,139,925.02/12,659.13
  6. Step 6: Final answer
    x = 12,650.15

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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.