Home / 9,679.53-13,358.76-5,431.74

Finding the Fourth Proportional to 9,679.53, 13,358.76 and 5,431.74

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Solution

The fourth proportional to 9,679.53, 13,358.76 and 5,431.74 is: 7,496.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,679.53 : 13,358.76 = 5,431.74 : x
  2. Step 2: Convert to fraction form
    9,679.53/13,358.76 = 5,431.74/x
  3. Step 3: Cross multiply
    9,679.53x = 13,358.76 × 5,431.74
  4. Step 4: Simplify right side
    9,679.53x = 72,561,311.04
  5. Step 5: Solve for x
    x = 72,561,311.04/9,679.53
  6. Step 6: Final answer
    x = 7,496.37

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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.