Home / 18,757.33-25,855.07-12,705.71

Finding the Fourth Proportional to 18,757.33, 25,855.07 and 12,705.71

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Solution

The fourth proportional to 18,757.33, 25,855.07 and 12,705.71 is: 17,513.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,757.33 : 25,855.07 = 12,705.71 : x
  2. Step 2: Convert to fraction form
    18,757.33/25,855.07 = 12,705.71/x
  3. Step 3: Cross multiply
    18,757.33x = 25,855.07 × 12,705.71
  4. Step 4: Simplify right side
    18,757.33x = 328,506,828.65
  5. Step 5: Solve for x
    x = 328,506,828.65/18,757.33
  6. Step 6: Final answer
    x = 17,513.52

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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.