Home / 18,869.72-28,309.22-9,386.52

Finding the Fourth Proportional to 18,869.72, 28,309.22 and 9,386.52

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Solution

The fourth proportional to 18,869.72, 28,309.22 and 9,386.52 is: 14,082.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,869.72 : 28,309.22 = 9,386.52 : x
  2. Step 2: Convert to fraction form
    18,869.72/28,309.22 = 9,386.52/x
  3. Step 3: Cross multiply
    18,869.72x = 28,309.22 × 9,386.52
  4. Step 4: Simplify right side
    18,869.72x = 265,724,938.44
  5. Step 5: Solve for x
    x = 265,724,938.44/18,869.72
  6. Step 6: Final answer
    x = 14,082.08

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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.