Home / 9,005.26-12,425.61-5,228.86

Finding the Fourth Proportional to 9,005.26, 12,425.61 and 5,228.86

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Solution

The fourth proportional to 9,005.26, 12,425.61 and 5,228.86 is: 7,214.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,005.26 : 12,425.61 = 5,228.86 : x
  2. Step 2: Convert to fraction form
    9,005.26/12,425.61 = 5,228.86/x
  3. Step 3: Cross multiply
    9,005.26x = 12,425.61 × 5,228.86
  4. Step 4: Simplify right side
    9,005.26x = 64,971,775.10
  5. Step 5: Solve for x
    x = 64,971,775.10/9,005.26
  6. Step 6: Final answer
    x = 7,214.87

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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.