Home / 9,288.42-12,815.25-5,255.03

Finding the Fourth Proportional to 9,288.42, 12,815.25 and 5,255.03

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Solution

The fourth proportional to 9,288.42, 12,815.25 and 5,255.03 is: 7,250.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,288.42 : 12,815.25 = 5,255.03 : x
  2. Step 2: Convert to fraction form
    9,288.42/12,815.25 = 5,255.03/x
  3. Step 3: Cross multiply
    9,288.42x = 12,815.25 × 5,255.03
  4. Step 4: Simplify right side
    9,288.42x = 67,344,459.13
  5. Step 5: Solve for x
    x = 67,344,459.13/9,288.42
  6. Step 6: Final answer
    x = 7,250.37

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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.