Home / 9,507.28-13,120.62-5,315.56

Finding the Fourth Proportional to 9,507.28, 13,120.62 and 5,315.56

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Solution

The fourth proportional to 9,507.28, 13,120.62 and 5,315.56 is: 7,335.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,507.28 : 13,120.62 = 5,315.56 : x
  2. Step 2: Convert to fraction form
    9,507.28/13,120.62 = 5,315.56/x
  3. Step 3: Cross multiply
    9,507.28x = 13,120.62 × 5,315.56
  4. Step 4: Simplify right side
    9,507.28x = 69,743,442.85
  5. Step 5: Solve for x
    x = 69,743,442.85/9,507.28
  6. Step 6: Final answer
    x = 7,335.79

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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.