Home / 25,563.72-38,334.56-8,918.78

Finding the Fourth Proportional to 25,563.72, 38,334.56 and 8,918.78

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Solution

The fourth proportional to 25,563.72, 38,334.56 and 8,918.78 is: 13,374.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,563.72 : 38,334.56 = 8,918.78 : x
  2. Step 2: Convert to fraction form
    25,563.72/38,334.56 = 8,918.78/x
  3. Step 3: Cross multiply
    25,563.72x = 38,334.56 × 8,918.78
  4. Step 4: Simplify right side
    25,563.72x = 341,897,507.04
  5. Step 5: Solve for x
    x = 341,897,507.04/25,563.72
  6. Step 6: Final answer
    x = 13,374.33

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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.