Home / 10,363.19-15,549.38-5,431.65

Finding the Fourth Proportional to 10,363.19, 15,549.38 and 5,431.65

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Solution

The fourth proportional to 10,363.19, 15,549.38 and 5,431.65 is: 8,149.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,363.19 : 15,549.38 = 5,431.65 : x
  2. Step 2: Convert to fraction form
    10,363.19/15,549.38 = 5,431.65/x
  3. Step 3: Cross multiply
    10,363.19x = 15,549.38 × 5,431.65
  4. Step 4: Simplify right side
    10,363.19x = 84,458,762.72
  5. Step 5: Solve for x
    x = 84,458,762.72/10,363.19
  6. Step 6: Final answer
    x = 8,149.88

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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.