Home / 14,154.50-21,231.80-4,293.87

Finding the Fourth Proportional to 14,154.50, 21,231.80 and 4,293.87

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Solution

The fourth proportional to 14,154.50, 21,231.80 and 4,293.87 is: 6,440.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,154.50 : 21,231.80 = 4,293.87 : x
  2. Step 2: Convert to fraction form
    14,154.50/21,231.80 = 4,293.87/x
  3. Step 3: Cross multiply
    14,154.50x = 21,231.80 × 4,293.87
  4. Step 4: Simplify right side
    14,154.50x = 91,166,589.07
  5. Step 5: Solve for x
    x = 91,166,589.07/14,154.50
  6. Step 6: Final answer
    x = 6,440.82

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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.