Home / 12,211.29-18,291.02-8,264.97

Finding the Fourth Proportional to 12,211.29, 18,291.02 and 8,264.97

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Solution

The fourth proportional to 12,211.29, 18,291.02 and 8,264.97 is: 12,379.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,211.29 : 18,291.02 = 8,264.97 : x
  2. Step 2: Convert to fraction form
    12,211.29/18,291.02 = 8,264.97/x
  3. Step 3: Cross multiply
    12,211.29x = 18,291.02 × 8,264.97
  4. Step 4: Simplify right side
    12,211.29x = 151,174,690.24
  5. Step 5: Solve for x
    x = 151,174,690.24/12,211.29
  6. Step 6: Final answer
    x = 12,379.91

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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.