Home / 10,888.48-15,027.78-6,171.76

Finding the Fourth Proportional to 10,888.48, 15,027.78 and 6,171.76

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Solution

The fourth proportional to 10,888.48, 15,027.78 and 6,171.76 is: 8,517.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,888.48 : 15,027.78 = 6,171.76 : x
  2. Step 2: Convert to fraction form
    10,888.48/15,027.78 = 6,171.76/x
  3. Step 3: Cross multiply
    10,888.48x = 15,027.78 × 6,171.76
  4. Step 4: Simplify right side
    10,888.48x = 92,747,851.49
  5. Step 5: Solve for x
    x = 92,747,851.49/10,888.48
  6. Step 6: Final answer
    x = 8,517.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.