Home / 18,789.10-28,184.10-6,309.53

Finding the Fourth Proportional to 18,789.10, 28,184.10 and 6,309.53

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Solution

The fourth proportional to 18,789.10, 28,184.10 and 6,309.53 is: 9,464.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,789.10 : 28,184.10 = 6,309.53 : x
  2. Step 2: Convert to fraction form
    18,789.10/28,184.10 = 6,309.53/x
  3. Step 3: Cross multiply
    18,789.10x = 28,184.10 × 6,309.53
  4. Step 4: Simplify right side
    18,789.10x = 177,828,424.47
  5. Step 5: Solve for x
    x = 177,828,424.47/18,789.10
  6. Step 6: Final answer
    x = 9,464.45

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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.