Home / 8,988.84-13,488.66-7,146.36

Finding the Fourth Proportional to 8,988.84, 13,488.66 and 7,146.36

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Solution

The fourth proportional to 8,988.84, 13,488.66 and 7,146.36 is: 10,723.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,988.84 : 13,488.66 = 7,146.36 : x
  2. Step 2: Convert to fraction form
    8,988.84/13,488.66 = 7,146.36/x
  3. Step 3: Cross multiply
    8,988.84x = 13,488.66 × 7,146.36
  4. Step 4: Simplify right side
    8,988.84x = 96,394,820.28
  5. Step 5: Solve for x
    x = 96,394,820.28/8,988.84
  6. Step 6: Final answer
    x = 10,723.83

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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.