Home / 25,693.78-38,517.30-9,888.72

Finding the Fourth Proportional to 25,693.78, 38,517.30 and 9,888.72

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Solution

The fourth proportional to 25,693.78, 38,517.30 and 9,888.72 is: 14,824.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,693.78 : 38,517.30 = 9,888.72 : x
  2. Step 2: Convert to fraction form
    25,693.78/38,517.30 = 9,888.72/x
  3. Step 3: Cross multiply
    25,693.78x = 38,517.30 × 9,888.72
  4. Step 4: Simplify right side
    25,693.78x = 380,886,794.86
  5. Step 5: Solve for x
    x = 380,886,794.86/25,693.78
  6. Step 6: Final answer
    x = 14,824.09

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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.