Home / 25,717.11-38,578.70-9,918.46

Finding the Fourth Proportional to 25,717.11, 38,578.70 and 9,918.46

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Solution

The fourth proportional to 25,717.11, 38,578.70 and 9,918.46 is: 14,878.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,717.11 : 38,578.70 = 9,918.46 : x
  2. Step 2: Convert to fraction form
    25,717.11/38,578.70 = 9,918.46/x
  3. Step 3: Cross multiply
    25,717.11x = 38,578.70 × 9,918.46
  4. Step 4: Simplify right side
    25,717.11x = 382,641,292.80
  5. Step 5: Solve for x
    x = 382,641,292.80/25,717.11
  6. Step 6: Final answer
    x = 14,878.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.