Home / 26,711.19-40,066.20-7,991.28

Finding the Fourth Proportional to 26,711.19, 40,066.20 and 7,991.28

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Solution

The fourth proportional to 26,711.19, 40,066.20 and 7,991.28 is: 11,986.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,711.19 : 40,066.20 = 7,991.28 : x
  2. Step 2: Convert to fraction form
    26,711.19/40,066.20 = 7,991.28/x
  3. Step 3: Cross multiply
    26,711.19x = 40,066.20 × 7,991.28
  4. Step 4: Simplify right side
    26,711.19x = 320,180,222.74
  5. Step 5: Solve for x
    x = 320,180,222.74/26,711.19
  6. Step 6: Final answer
    x = 11,986.74

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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.