Home / 9,430.62-13,014.18-5,238.78

Finding the Fourth Proportional to 9,430.62, 13,014.18 and 5,238.78

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Solution

The fourth proportional to 9,430.62, 13,014.18 and 5,238.78 is: 7,229.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,430.62 : 13,014.18 = 5,238.78 : x
  2. Step 2: Convert to fraction form
    9,430.62/13,014.18 = 5,238.78/x
  3. Step 3: Cross multiply
    9,430.62x = 13,014.18 × 5,238.78
  4. Step 4: Simplify right side
    9,430.62x = 68,178,425.90
  5. Step 5: Solve for x
    x = 68,178,425.90/9,430.62
  6. Step 6: Final answer
    x = 7,229.47

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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.