Home / 10,905.76-15,049.80-6,190

Finding the Fourth Proportional to 10,905.76, 15,049.80 and 6,190

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Solution

The fourth proportional to 10,905.76, 15,049.80 and 6,190 is: 8,542.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,905.76 : 15,049.80 = 6,190 : x
  2. Step 2: Convert to fraction form
    10,905.76/15,049.80 = 6,190/x
  3. Step 3: Cross multiply
    10,905.76x = 15,049.80 × 6,190
  4. Step 4: Simplify right side
    10,905.76x = 93,158,262
  5. Step 5: Solve for x
    x = 93,158,262/10,905.76
  6. Step 6: Final answer
    x = 8,542.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.