Home / 9,631.53-13,290.87-5,438.97

Finding the Fourth Proportional to 9,631.53, 13,290.87 and 5,438.97

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Solution

The fourth proportional to 9,631.53, 13,290.87 and 5,438.97 is: 7,505.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,631.53 : 13,290.87 = 5,438.97 : x
  2. Step 2: Convert to fraction form
    9,631.53/13,290.87 = 5,438.97/x
  3. Step 3: Cross multiply
    9,631.53x = 13,290.87 × 5,438.97
  4. Step 4: Simplify right side
    9,631.53x = 72,288,643.20
  5. Step 5: Solve for x
    x = 72,288,643.20/9,631.53
  6. Step 6: Final answer
    x = 7,505.42

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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.