Home / 16,491.12-22,777.56-11,721.84

Finding the Fourth Proportional to 16,491.12, 22,777.56 and 11,721.84

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Solution

The fourth proportional to 16,491.12, 22,777.56 and 11,721.84 is: 16,190.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,491.12 : 22,777.56 = 11,721.84 : x
  2. Step 2: Convert to fraction form
    16,491.12/22,777.56 = 11,721.84/x
  3. Step 3: Cross multiply
    16,491.12x = 22,777.56 × 11,721.84
  4. Step 4: Simplify right side
    16,491.12x = 266,994,913.91
  5. Step 5: Solve for x
    x = 266,994,913.91/16,491.12
  6. Step 6: Final answer
    x = 16,190.22

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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.