Home / 12,656.20-18,981.78-4,335.52

Finding the Fourth Proportional to 12,656.20, 18,981.78 and 4,335.52

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Solution

The fourth proportional to 12,656.20, 18,981.78 and 4,335.52 is: 6,502.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,656.20 : 18,981.78 = 4,335.52 : x
  2. Step 2: Convert to fraction form
    12,656.20/18,981.78 = 4,335.52/x
  3. Step 3: Cross multiply
    12,656.20x = 18,981.78 × 4,335.52
  4. Step 4: Simplify right side
    12,656.20x = 82,295,886.83
  5. Step 5: Solve for x
    x = 82,295,886.83/12,656.20
  6. Step 6: Final answer
    x = 6,502.42

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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.