Home / 19,294.89-28,916.21-12,263.69

Finding the Fourth Proportional to 19,294.89, 28,916.21 and 12,263.69

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Solution

The fourth proportional to 19,294.89, 28,916.21 and 12,263.69 is: 18,378.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,294.89 : 28,916.21 = 12,263.69 : x
  2. Step 2: Convert to fraction form
    19,294.89/28,916.21 = 12,263.69/x
  3. Step 3: Cross multiply
    19,294.89x = 28,916.21 × 12,263.69
  4. Step 4: Simplify right side
    19,294.89x = 354,619,229.52
  5. Step 5: Solve for x
    x = 354,619,229.52/19,294.89
  6. Step 6: Final answer
    x = 18,378.92

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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.