Home / 14,210.72-21,316.49-4,349.78

Finding the Fourth Proportional to 14,210.72, 21,316.49 and 4,349.78

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Solution

The fourth proportional to 14,210.72, 21,316.49 and 4,349.78 is: 6,524.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,210.72 : 21,316.49 = 4,349.78 : x
  2. Step 2: Convert to fraction form
    14,210.72/21,316.49 = 4,349.78/x
  3. Step 3: Cross multiply
    14,210.72x = 21,316.49 × 4,349.78
  4. Step 4: Simplify right side
    14,210.72x = 92,721,913.54
  5. Step 5: Solve for x
    x = 92,721,913.54/14,210.72
  6. Step 6: Final answer
    x = 6,524.79

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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.