Home / 18,672.48-28,000.80-6,977.52

Finding the Fourth Proportional to 18,672.48, 28,000.80 and 6,977.52

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Solution

The fourth proportional to 18,672.48, 28,000.80 and 6,977.52 is: 10,463.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,672.48 : 28,000.80 = 6,977.52 : x
  2. Step 2: Convert to fraction form
    18,672.48/28,000.80 = 6,977.52/x
  3. Step 3: Cross multiply
    18,672.48x = 28,000.80 × 6,977.52
  4. Step 4: Simplify right side
    18,672.48x = 195,376,142.02
  5. Step 5: Solve for x
    x = 195,376,142.02/18,672.48
  6. Step 6: Final answer
    x = 10,463.32

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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.