Home / 11,625.40-17,427.30-8,115.40

Finding the Fourth Proportional to 11,625.40, 17,427.30 and 8,115.40

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Solution

The fourth proportional to 11,625.40, 17,427.30 and 8,115.40 is: 12,165.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,625.40 : 17,427.30 = 8,115.40 : x
  2. Step 2: Convert to fraction form
    11,625.40/17,427.30 = 8,115.40/x
  3. Step 3: Cross multiply
    11,625.40x = 17,427.30 × 8,115.40
  4. Step 4: Simplify right side
    11,625.40x = 141,429,510.42
  5. Step 5: Solve for x
    x = 141,429,510.42/11,625.40
  6. Step 6: Final answer
    x = 12,165.56

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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.