Home / 9,147.26-12,618.60-6,122.51

Finding the Fourth Proportional to 9,147.26, 12,618.60 and 6,122.51

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Solution

The fourth proportional to 9,147.26, 12,618.60 and 6,122.51 is: 8,445.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,147.26 : 12,618.60 = 6,122.51 : x
  2. Step 2: Convert to fraction form
    9,147.26/12,618.60 = 6,122.51/x
  3. Step 3: Cross multiply
    9,147.26x = 12,618.60 × 6,122.51
  4. Step 4: Simplify right side
    9,147.26x = 77,257,484.25
  5. Step 5: Solve for x
    x = 77,257,484.25/9,147.26
  6. Step 6: Final answer
    x = 8,445.97

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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.