Home / 17,279.79-25,903.23-7,915.78

Finding the Fourth Proportional to 17,279.79, 25,903.23 and 7,915.78

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Solution

The fourth proportional to 17,279.79, 25,903.23 and 7,915.78 is: 11,866.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,279.79 : 25,903.23 = 7,915.78 : x
  2. Step 2: Convert to fraction form
    17,279.79/25,903.23 = 7,915.78/x
  3. Step 3: Cross multiply
    17,279.79x = 25,903.23 × 7,915.78
  4. Step 4: Simplify right side
    17,279.79x = 205,044,269.97
  5. Step 5: Solve for x
    x = 205,044,269.97/17,279.79
  6. Step 6: Final answer
    x = 11,866.13

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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.