Home / 9,180.45-12,668.67-4,988.70

Finding the Fourth Proportional to 9,180.45, 12,668.67 and 4,988.70

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Solution

The fourth proportional to 9,180.45, 12,668.67 and 4,988.70 is: 6,884.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,180.45 : 12,668.67 = 4,988.70 : x
  2. Step 2: Convert to fraction form
    9,180.45/12,668.67 = 4,988.70/x
  3. Step 3: Cross multiply
    9,180.45x = 12,668.67 × 4,988.70
  4. Step 4: Simplify right side
    9,180.45x = 63,200,194.03
  5. Step 5: Solve for x
    x = 63,200,194.03/9,180.45
  6. Step 6: Final answer
    x = 6,884.22

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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.