Home / 12,588.96-18,864-4,793.52

Finding the Fourth Proportional to 12,588.96, 18,864 and 4,793.52

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Solution

The fourth proportional to 12,588.96, 18,864 and 4,793.52 is: 7,182.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,588.96 : 18,864 = 4,793.52 : x
  2. Step 2: Convert to fraction form
    12,588.96/18,864 = 4,793.52/x
  3. Step 3: Cross multiply
    12,588.96x = 18,864 × 4,793.52
  4. Step 4: Simplify right side
    12,588.96x = 90,424,961.28
  5. Step 5: Solve for x
    x = 90,424,961.28/12,588.96
  6. Step 6: Final answer
    x = 7,182.88

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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.