Home / 12,123.26-18,167.79-9,647.06

Finding the Fourth Proportional to 12,123.26, 18,167.79 and 9,647.06

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Solution

The fourth proportional to 12,123.26, 18,167.79 and 9,647.06 is: 14,456.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,123.26 : 18,167.79 = 9,647.06 : x
  2. Step 2: Convert to fraction form
    12,123.26/18,167.79 = 9,647.06/x
  3. Step 3: Cross multiply
    12,123.26x = 18,167.79 × 9,647.06
  4. Step 4: Simplify right side
    12,123.26x = 175,265,760.20
  5. Step 5: Solve for x
    x = 175,265,760.20/12,123.26
  6. Step 6: Final answer
    x = 14,456.98

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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.