Home / 9,179.90-12,668.10-4,988.12

Finding the Fourth Proportional to 9,179.90, 12,668.10 and 4,988.12

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Solution

The fourth proportional to 9,179.90, 12,668.10 and 4,988.12 is: 6,883.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,179.90 : 12,668.10 = 4,988.12 : x
  2. Step 2: Convert to fraction form
    9,179.90/12,668.10 = 4,988.12/x
  3. Step 3: Cross multiply
    9,179.90x = 12,668.10 × 4,988.12
  4. Step 4: Simplify right side
    9,179.90x = 63,190,002.97
  5. Step 5: Solve for x
    x = 63,190,002.97/9,179.90
  6. Step 6: Final answer
    x = 6,883.52

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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.