Home / 10,471.38-15,707.84-3,897.56

Finding the Fourth Proportional to 10,471.38, 15,707.84 and 3,897.56

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Solution

The fourth proportional to 10,471.38, 15,707.84 and 3,897.56 is: 5,846.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,471.38 : 15,707.84 = 3,897.56 : x
  2. Step 2: Convert to fraction form
    10,471.38/15,707.84 = 3,897.56/x
  3. Step 3: Cross multiply
    10,471.38x = 15,707.84 × 3,897.56
  4. Step 4: Simplify right side
    10,471.38x = 61,222,268.65
  5. Step 5: Solve for x
    x = 61,222,268.65/10,471.38
  6. Step 6: Final answer
    x = 5,846.63

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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.