Home / 11,178.54-15,427.80-6,462.72

Finding the Fourth Proportional to 11,178.54, 15,427.80 and 6,462.72

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Solution

The fourth proportional to 11,178.54, 15,427.80 and 6,462.72 is: 8,919.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,178.54 : 15,427.80 = 6,462.72 : x
  2. Step 2: Convert to fraction form
    11,178.54/15,427.80 = 6,462.72/x
  3. Step 3: Cross multiply
    11,178.54x = 15,427.80 × 6,462.72
  4. Step 4: Simplify right side
    11,178.54x = 99,705,551.62
  5. Step 5: Solve for x
    x = 99,705,551.62/11,178.54
  6. Step 6: Final answer
    x = 8,919.37

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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.