Home / 14,179.81-21,272.03-4,316.78

Finding the Fourth Proportional to 14,179.81, 21,272.03 and 4,316.78

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Solution

The fourth proportional to 14,179.81, 21,272.03 and 4,316.78 is: 6,475.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,179.81 : 21,272.03 = 4,316.78 : x
  2. Step 2: Convert to fraction form
    14,179.81/21,272.03 = 4,316.78/x
  3. Step 3: Cross multiply
    14,179.81x = 21,272.03 × 4,316.78
  4. Step 4: Simplify right side
    14,179.81x = 91,826,673.66
  5. Step 5: Solve for x
    x = 91,826,673.66/14,179.81
  6. Step 6: Final answer
    x = 6,475.87

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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.