Home / 14,086.51-21,122.02-4,721.61

Finding the Fourth Proportional to 14,086.51, 21,122.02 and 4,721.61

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Solution

The fourth proportional to 14,086.51, 21,122.02 and 4,721.61 is: 7,079.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,086.51 : 21,122.02 = 4,721.61 : x
  2. Step 2: Convert to fraction form
    14,086.51/21,122.02 = 4,721.61/x
  3. Step 3: Cross multiply
    14,086.51x = 21,122.02 × 4,721.61
  4. Step 4: Simplify right side
    14,086.51x = 99,729,940.85
  5. Step 5: Solve for x
    x = 99,729,940.85/14,086.51
  6. Step 6: Final answer
    x = 7,079.82

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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.