Home / 15,483.38-21,363.92-9,429.56

Finding the Fourth Proportional to 15,483.38, 21,363.92 and 9,429.56

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Solution

The fourth proportional to 15,483.38, 21,363.92 and 9,429.56 is: 13,010.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,483.38 : 21,363.92 = 9,429.56 : x
  2. Step 2: Convert to fraction form
    15,483.38/21,363.92 = 9,429.56/x
  3. Step 3: Cross multiply
    15,483.38x = 21,363.92 × 9,429.56
  4. Step 4: Simplify right side
    15,483.38x = 201,452,211.51
  5. Step 5: Solve for x
    x = 201,452,211.51/15,483.38
  6. Step 6: Final answer
    x = 13,010.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.