Home / 25,918.78-38,870.34-7,194.28

Finding the Fourth Proportional to 25,918.78, 38,870.34 and 7,194.28

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Solution

The fourth proportional to 25,918.78, 38,870.34 and 7,194.28 is: 10,789.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,918.78 : 38,870.34 = 7,194.28 : x
  2. Step 2: Convert to fraction form
    25,918.78/38,870.34 = 7,194.28/x
  3. Step 3: Cross multiply
    25,918.78x = 38,870.34 × 7,194.28
  4. Step 4: Simplify right side
    25,918.78x = 279,644,109.66
  5. Step 5: Solve for x
    x = 279,644,109.66/25,918.78
  6. Step 6: Final answer
    x = 10,789.25

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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.