Home / 10,640.79-15,962.24-4,072.50

Finding the Fourth Proportional to 10,640.79, 15,962.24 and 4,072.50

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Solution

The fourth proportional to 10,640.79, 15,962.24 and 4,072.50 is: 6,109.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,640.79 : 15,962.24 = 4,072.50 : x
  2. Step 2: Convert to fraction form
    10,640.79/15,962.24 = 4,072.50/x
  3. Step 3: Cross multiply
    10,640.79x = 15,962.24 × 4,072.50
  4. Step 4: Simplify right side
    10,640.79x = 65,006,232.58
  5. Step 5: Solve for x
    x = 65,006,232.58/10,640.79
  6. Step 6: Final answer
    x = 6,109.15

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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.