Home / 25,279.91-37,918.49-7,749.78

Finding the Fourth Proportional to 25,279.91, 37,918.49 and 7,749.78

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Solution

The fourth proportional to 25,279.91, 37,918.49 and 7,749.78 is: 11,624.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,279.91 : 37,918.49 = 7,749.78 : x
  2. Step 2: Convert to fraction form
    25,279.91/37,918.49 = 7,749.78/x
  3. Step 3: Cross multiply
    25,279.91x = 37,918.49 × 7,749.78
  4. Step 4: Simplify right side
    25,279.91x = 293,859,916.68
  5. Step 5: Solve for x
    x = 293,859,916.68/25,279.91
  6. Step 6: Final answer
    x = 11,624.25

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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.