Home / 14,218.11-21,331.61-4,222.91

Finding the Fourth Proportional to 14,218.11, 21,331.61 and 4,222.91

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Solution

The fourth proportional to 14,218.11, 21,331.61 and 4,222.91 is: 6,335.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,218.11 : 21,331.61 = 4,222.91 : x
  2. Step 2: Convert to fraction form
    14,218.11/21,331.61 = 4,222.91/x
  3. Step 3: Cross multiply
    14,218.11x = 21,331.61 × 4,222.91
  4. Step 4: Simplify right side
    14,218.11x = 90,081,448.07
  5. Step 5: Solve for x
    x = 90,081,448.07/14,218.11
  6. Step 6: Final answer
    x = 6,335.68

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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.