Home / 9,318.72-13,965.36-5,152.56

Finding the Fourth Proportional to 9,318.72, 13,965.36 and 5,152.56

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Solution

The fourth proportional to 9,318.72, 13,965.36 and 5,152.56 is: 7,721.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,318.72 : 13,965.36 = 5,152.56 : x
  2. Step 2: Convert to fraction form
    9,318.72/13,965.36 = 5,152.56/x
  3. Step 3: Cross multiply
    9,318.72x = 13,965.36 × 5,152.56
  4. Step 4: Simplify right side
    9,318.72x = 71,957,355.32
  5. Step 5: Solve for x
    x = 71,957,355.32/9,318.72
  6. Step 6: Final answer
    x = 7,721.81

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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.