Home / 8,087.88-11,162.70-7,718.52

Finding the Fourth Proportional to 8,087.88, 11,162.70 and 7,718.52

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Solution

The fourth proportional to 8,087.88, 11,162.70 and 7,718.52 is: 10,652.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,087.88 : 11,162.70 = 7,718.52 : x
  2. Step 2: Convert to fraction form
    8,087.88/11,162.70 = 7,718.52/x
  3. Step 3: Cross multiply
    8,087.88x = 11,162.70 × 7,718.52
  4. Step 4: Simplify right side
    8,087.88x = 86,159,523.20
  5. Step 5: Solve for x
    x = 86,159,523.20/8,087.88
  6. Step 6: Final answer
    x = 10,652.92

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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.