Home / 14,148.27-21,225.65-4,287.87

Finding the Fourth Proportional to 14,148.27, 21,225.65 and 4,287.87

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Solution

The fourth proportional to 14,148.27, 21,225.65 and 4,287.87 is: 6,432.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,148.27 : 21,225.65 = 4,287.87 : x
  2. Step 2: Convert to fraction form
    14,148.27/21,225.65 = 4,287.87/x
  3. Step 3: Cross multiply
    14,148.27x = 21,225.65 × 4,287.87
  4. Step 4: Simplify right side
    14,148.27x = 91,012,806.43
  5. Step 5: Solve for x
    x = 91,012,806.43/14,148.27
  6. Step 6: Final answer
    x = 6,432.79

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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.