Home / 9,045.21-12,469.55-6,650.97

Finding the Fourth Proportional to 9,045.21, 12,469.55 and 6,650.97

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Solution

The fourth proportional to 9,045.21, 12,469.55 and 6,650.97 is: 9,168.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,045.21 : 12,469.55 = 6,650.97 : x
  2. Step 2: Convert to fraction form
    9,045.21/12,469.55 = 6,650.97/x
  3. Step 3: Cross multiply
    9,045.21x = 12,469.55 × 6,650.97
  4. Step 4: Simplify right side
    9,045.21x = 82,934,569.71
  5. Step 5: Solve for x
    x = 82,934,569.71/9,045.21
  6. Step 6: Final answer
    x = 9,168.89

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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.