Home / 10,510.29-15,765.38-3,115.33

Finding the Fourth Proportional to 10,510.29, 15,765.38 and 3,115.33

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Solution

The fourth proportional to 10,510.29, 15,765.38 and 3,115.33 is: 4,672.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,510.29 : 15,765.38 = 3,115.33 : x
  2. Step 2: Convert to fraction form
    10,510.29/15,765.38 = 3,115.33/x
  3. Step 3: Cross multiply
    10,510.29x = 15,765.38 × 3,115.33
  4. Step 4: Simplify right side
    10,510.29x = 49,114,317.97
  5. Step 5: Solve for x
    x = 49,114,317.97/10,510.29
  6. Step 6: Final answer
    x = 4,672.97

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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.