Home / 11,275.25-15,559.32-6,170.66

Finding the Fourth Proportional to 11,275.25, 15,559.32 and 6,170.66

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Solution

The fourth proportional to 11,275.25, 15,559.32 and 6,170.66 is: 8,515.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,275.25 : 15,559.32 = 6,170.66 : x
  2. Step 2: Convert to fraction form
    11,275.25/15,559.32 = 6,170.66/x
  3. Step 3: Cross multiply
    11,275.25x = 15,559.32 × 6,170.66
  4. Step 4: Simplify right side
    11,275.25x = 96,011,181.42
  5. Step 5: Solve for x
    x = 96,011,181.42/11,275.25
  6. Step 6: Final answer
    x = 8,515.21

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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.