Home / 18,364.72-25,343.04-10,811.92

Finding the Fourth Proportional to 18,364.72, 25,343.04 and 10,811.92

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Solution

The fourth proportional to 18,364.72, 25,343.04 and 10,811.92 is: 14,920.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,364.72 : 25,343.04 = 10,811.92 : x
  2. Step 2: Convert to fraction form
    18,364.72/25,343.04 = 10,811.92/x
  3. Step 3: Cross multiply
    18,364.72x = 25,343.04 × 10,811.92
  4. Step 4: Simplify right side
    18,364.72x = 274,006,921.04
  5. Step 5: Solve for x
    x = 274,006,921.04/18,364.72
  6. Step 6: Final answer
    x = 14,920.29

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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.