Home / 7,997.85-11,926.80-7,561.13

Finding the Fourth Proportional to 7,997.85, 11,926.80 and 7,561.13

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Solution

The fourth proportional to 7,997.85, 11,926.80 and 7,561.13 is: 11,275.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,997.85 : 11,926.80 = 7,561.13 : x
  2. Step 2: Convert to fraction form
    7,997.85/11,926.80 = 7,561.13/x
  3. Step 3: Cross multiply
    7,997.85x = 11,926.80 × 7,561.13
  4. Step 4: Simplify right side
    7,997.85x = 90,180,025.65
  5. Step 5: Solve for x
    x = 90,180,025.65/7,997.85
  6. Step 6: Final answer
    x = 11,275.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.