Home / 25,749.78-38,627.91-9,105.90

Finding the Fourth Proportional to 25,749.78, 38,627.91 and 9,105.90

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Solution

The fourth proportional to 25,749.78, 38,627.91 and 9,105.90 is: 13,660.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,749.78 : 38,627.91 = 9,105.90 : x
  2. Step 2: Convert to fraction form
    25,749.78/38,627.91 = 9,105.90/x
  3. Step 3: Cross multiply
    25,749.78x = 38,627.91 × 9,105.90
  4. Step 4: Simplify right side
    25,749.78x = 351,741,885.67
  5. Step 5: Solve for x
    x = 351,741,885.67/25,749.78
  6. Step 6: Final answer
    x = 13,660.00

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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.