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Finding the Fourth Proportional to 26,668.76, 40,003.12 and 8,200.76

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Solution

The fourth proportional to 26,668.76, 40,003.12 and 8,200.76 is: 12,301.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,668.76 : 40,003.12 = 8,200.76 : x
  2. Step 2: Convert to fraction form
    26,668.76/40,003.12 = 8,200.76/x
  3. Step 3: Cross multiply
    26,668.76x = 40,003.12 × 8,200.76
  4. Step 4: Simplify right side
    26,668.76x = 328,055,986.37
  5. Step 5: Solve for x
    x = 328,055,986.37/26,668.76
  6. Step 6: Final answer
    x = 12,301.13

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1.5x scale

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.