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Finding the Fourth Proportional to 26,696.20, 40,010.22 and 12,656.20

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Solution

The fourth proportional to 26,696.20, 40,010.22 and 12,656.20 is: 18,968.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,696.20 : 40,010.22 = 12,656.20 : x
  2. Step 2: Convert to fraction form
    26,696.20/40,010.22 = 12,656.20/x
  3. Step 3: Cross multiply
    26,696.20x = 40,010.22 × 12,656.20
  4. Step 4: Simplify right side
    26,696.20x = 506,377,346.36
  5. Step 5: Solve for x
    x = 506,377,346.36/26,696.20
  6. Step 6: Final answer
    x = 18,968.14

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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.