Home / 25,907.18-38,861.59-7,187.40

Finding the Fourth Proportional to 25,907.18, 38,861.59 and 7,187.40

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Solution

The fourth proportional to 25,907.18, 38,861.59 and 7,187.40 is: 10,781.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,907.18 : 38,861.59 = 7,187.40 : x
  2. Step 2: Convert to fraction form
    25,907.18/38,861.59 = 7,187.40/x
  3. Step 3: Cross multiply
    25,907.18x = 38,861.59 × 7,187.40
  4. Step 4: Simplify right side
    25,907.18x = 279,313,791.97
  5. Step 5: Solve for x
    x = 279,313,791.97/25,907.18
  6. Step 6: Final answer
    x = 10,781.33

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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.