Home / 21,106.06-29,126.02-11,545.75

Finding the Fourth Proportional to 21,106.06, 29,126.02 and 11,545.75

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Solution

The fourth proportional to 21,106.06, 29,126.02 and 11,545.75 is: 15,932.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,106.06 : 29,126.02 = 11,545.75 : x
  2. Step 2: Convert to fraction form
    21,106.06/29,126.02 = 11,545.75/x
  3. Step 3: Cross multiply
    21,106.06x = 29,126.02 × 11,545.75
  4. Step 4: Simplify right side
    21,106.06x = 336,281,745.42
  5. Step 5: Solve for x
    x = 336,281,745.42/21,106.06
  6. Step 6: Final answer
    x = 15,932.95

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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.