Home / 18,932.72-28,416.66-9,579.35

Finding the Fourth Proportional to 18,932.72, 28,416.66 and 9,579.35

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Solution

The fourth proportional to 18,932.72, 28,416.66 and 9,579.35 is: 14,377.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,932.72 : 28,416.66 = 9,579.35 : x
  2. Step 2: Convert to fraction form
    18,932.72/28,416.66 = 9,579.35/x
  3. Step 3: Cross multiply
    18,932.72x = 28,416.66 × 9,579.35
  4. Step 4: Simplify right side
    18,932.72x = 272,212,989.89
  5. Step 5: Solve for x
    x = 272,212,989.89/18,932.72
  6. Step 6: Final answer
    x = 14,377.92

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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.