Home / 18,931.97-26,125.78-10,318.23

Finding the Fourth Proportional to 18,931.97, 26,125.78 and 10,318.23

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Solution

The fourth proportional to 18,931.97, 26,125.78 and 10,318.23 is: 14,238.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,931.97 : 26,125.78 = 10,318.23 : x
  2. Step 2: Convert to fraction form
    18,931.97/26,125.78 = 10,318.23/x
  3. Step 3: Cross multiply
    18,931.97x = 26,125.78 × 10,318.23
  4. Step 4: Simplify right side
    18,931.97x = 269,571,806.97
  5. Step 5: Solve for x
    x = 269,571,806.97/18,931.97
  6. Step 6: Final answer
    x = 14,238.97

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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.