Home / 8,988.57-13,483.08-3,145.18

Finding the Fourth Proportional to 8,988.57, 13,483.08 and 3,145.18

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Solution

The fourth proportional to 8,988.57, 13,483.08 and 3,145.18 is: 4,717.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,988.57 : 13,483.08 = 3,145.18 : x
  2. Step 2: Convert to fraction form
    8,988.57/13,483.08 = 3,145.18/x
  3. Step 3: Cross multiply
    8,988.57x = 13,483.08 × 3,145.18
  4. Step 4: Simplify right side
    8,988.57x = 42,406,713.97
  5. Step 5: Solve for x
    x = 42,406,713.97/8,988.57
  6. Step 6: Final answer
    x = 4,717.85

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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.