Home / 16,783.76-25,178.40-5,691.75

Finding the Fourth Proportional to 16,783.76, 25,178.40 and 5,691.75

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Solution

The fourth proportional to 16,783.76, 25,178.40 and 5,691.75 is: 8,538.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,783.76 : 25,178.40 = 5,691.75 : x
  2. Step 2: Convert to fraction form
    16,783.76/25,178.40 = 5,691.75/x
  3. Step 3: Cross multiply
    16,783.76x = 25,178.40 × 5,691.75
  4. Step 4: Simplify right side
    16,783.76x = 143,309,158.20
  5. Step 5: Solve for x
    x = 143,309,158.20/16,783.76
  6. Step 6: Final answer
    x = 8,538.56

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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.