Home / 8,988.29-13,488.50-3,144.95

Finding the Fourth Proportional to 8,988.29, 13,488.50 and 3,144.95

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Solution

The fourth proportional to 8,988.29, 13,488.50 and 3,144.95 is: 4,719.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,988.29 : 13,488.50 = 3,144.95 : x
  2. Step 2: Convert to fraction form
    8,988.29/13,488.50 = 3,144.95/x
  3. Step 3: Cross multiply
    8,988.29x = 13,488.50 × 3,144.95
  4. Step 4: Simplify right side
    8,988.29x = 42,420,598.49
  5. Step 5: Solve for x
    x = 42,420,598.49/8,988.29
  6. Step 6: Final answer
    x = 4,719.54

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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.