Home / 9,179.91-12,668.36-4,988.16

Finding the Fourth Proportional to 9,179.91, 12,668.36 and 4,988.16

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Solution

The fourth proportional to 9,179.91, 12,668.36 and 4,988.16 is: 6,883.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,179.91 : 12,668.36 = 4,988.16 : x
  2. Step 2: Convert to fraction form
    9,179.91/12,668.36 = 4,988.16/x
  3. Step 3: Cross multiply
    9,179.91x = 12,668.36 × 4,988.16
  4. Step 4: Simplify right side
    9,179.91x = 63,191,860.36
  5. Step 5: Solve for x
    x = 63,191,860.36/9,179.91
  6. Step 6: Final answer
    x = 6,883.71

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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.