Home / 15,939.78-23,909.68-5,551.56

Finding the Fourth Proportional to 15,939.78, 23,909.68 and 5,551.56

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Solution

The fourth proportional to 15,939.78, 23,909.68 and 5,551.56 is: 8,327.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,939.78 : 23,909.68 = 5,551.56 : x
  2. Step 2: Convert to fraction form
    15,939.78/23,909.68 = 5,551.56/x
  3. Step 3: Cross multiply
    15,939.78x = 23,909.68 × 5,551.56
  4. Step 4: Simplify right side
    15,939.78x = 132,736,023.10
  5. Step 5: Solve for x
    x = 132,736,023.10/15,939.78
  6. Step 6: Final answer
    x = 8,327.34

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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.