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Finding the Fourth Proportional to 26,672.11, 40,011.81 and 9,802.87

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Solution

The fourth proportional to 26,672.11, 40,011.81 and 9,802.87 is: 14,705.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,672.11 : 40,011.81 = 9,802.87 : x
  2. Step 2: Convert to fraction form
    26,672.11/40,011.81 = 9,802.87/x
  3. Step 3: Cross multiply
    26,672.11x = 40,011.81 × 9,802.87
  4. Step 4: Simplify right side
    26,672.11x = 392,230,571.89
  5. Step 5: Solve for x
    x = 392,230,571.89/26,672.11
  6. Step 6: Final answer
    x = 14,705.64

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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.