Home / 25,680.78-38,512.08-9,887.04

Finding the Fourth Proportional to 25,680.78, 38,512.08 and 9,887.04

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Solution

The fourth proportional to 25,680.78, 38,512.08 and 9,887.04 is: 14,827.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,680.78 : 38,512.08 = 9,887.04 : x
  2. Step 2: Convert to fraction form
    25,680.78/38,512.08 = 9,887.04/x
  3. Step 3: Cross multiply
    25,680.78x = 38,512.08 × 9,887.04
  4. Step 4: Simplify right side
    25,680.78x = 380,770,475.44
  5. Step 5: Solve for x
    x = 380,770,475.44/25,680.78
  6. Step 6: Final answer
    x = 14,827.06

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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.