Home / 18,718.77-25,860.08-12,273.71

Finding the Fourth Proportional to 18,718.77, 25,860.08 and 12,273.71

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Solution

The fourth proportional to 18,718.77, 25,860.08 and 12,273.71 is: 16,956.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,718.77 : 25,860.08 = 12,273.71 : x
  2. Step 2: Convert to fraction form
    18,718.77/25,860.08 = 12,273.71/x
  3. Step 3: Cross multiply
    18,718.77x = 25,860.08 × 12,273.71
  4. Step 4: Simplify right side
    18,718.77x = 317,399,061.13
  5. Step 5: Solve for x
    x = 317,399,061.13/18,718.77
  6. Step 6: Final answer
    x = 16,956.19

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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.