Home / 9,431.28-13,015.10-5,182.38

Finding the Fourth Proportional to 9,431.28, 13,015.10 and 5,182.38

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Solution

The fourth proportional to 9,431.28, 13,015.10 and 5,182.38 is: 7,151.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,431.28 : 13,015.10 = 5,182.38 : x
  2. Step 2: Convert to fraction form
    9,431.28/13,015.10 = 5,182.38/x
  3. Step 3: Cross multiply
    9,431.28x = 13,015.10 × 5,182.38
  4. Step 4: Simplify right side
    9,431.28x = 67,449,200.56
  5. Step 5: Solve for x
    x = 67,449,200.56/9,431.28
  6. Step 6: Final answer
    x = 7,151.65

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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.