Home / 19,152.54-28,720.85-7,310.61

Finding the Fourth Proportional to 19,152.54, 28,720.85 and 7,310.61

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Solution

The fourth proportional to 19,152.54, 28,720.85 and 7,310.61 is: 10,962.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,152.54 : 28,720.85 = 7,310.61 : x
  2. Step 2: Convert to fraction form
    19,152.54/28,720.85 = 7,310.61/x
  3. Step 3: Cross multiply
    19,152.54x = 28,720.85 × 7,310.61
  4. Step 4: Simplify right side
    19,152.54x = 209,966,896.67
  5. Step 5: Solve for x
    x = 209,966,896.67/19,152.54
  6. Step 6: Final answer
    x = 10,962.87

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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.