Home / 25,175.78-37,763.67-11,988.17

Finding the Fourth Proportional to 25,175.78, 37,763.67 and 11,988.17

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Solution

The fourth proportional to 25,175.78, 37,763.67 and 11,988.17 is: 17,982.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,175.78 : 37,763.67 = 11,988.17 : x
  2. Step 2: Convert to fraction form
    25,175.78/37,763.67 = 11,988.17/x
  3. Step 3: Cross multiply
    25,175.78x = 37,763.67 × 11,988.17
  4. Step 4: Simplify right side
    25,175.78x = 452,717,226.10
  5. Step 5: Solve for x
    x = 452,717,226.10/25,175.78
  6. Step 6: Final answer
    x = 17,982.25

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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.