Home / 18,806.15-25,953.33-10,422.65

Finding the Fourth Proportional to 18,806.15, 25,953.33 and 10,422.65

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Solution

The fourth proportional to 18,806.15, 25,953.33 and 10,422.65 is: 14,383.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,806.15 : 25,953.33 = 10,422.65 : x
  2. Step 2: Convert to fraction form
    18,806.15/25,953.33 = 10,422.65/x
  3. Step 3: Cross multiply
    18,806.15x = 25,953.33 × 10,422.65
  4. Step 4: Simplify right side
    18,806.15x = 270,502,345.16
  5. Step 5: Solve for x
    x = 270,502,345.16/18,806.15
  6. Step 6: Final answer
    x = 14,383.72

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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.