Home / 8,991.18-13,486.77-5,087.52

Finding the Fourth Proportional to 8,991.18, 13,486.77 and 5,087.52

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Solution

The fourth proportional to 8,991.18, 13,486.77 and 5,087.52 is: 7,631.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,991.18 : 13,486.77 = 5,087.52 : x
  2. Step 2: Convert to fraction form
    8,991.18/13,486.77 = 5,087.52/x
  3. Step 3: Cross multiply
    8,991.18x = 13,486.77 × 5,087.52
  4. Step 4: Simplify right side
    8,991.18x = 68,614,212.11
  5. Step 5: Solve for x
    x = 68,614,212.11/8,991.18
  6. Step 6: Final answer
    x = 7,631.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.