Home / 12,355.48-18,533.17-6,805.90

Finding the Fourth Proportional to 12,355.48, 18,533.17 and 6,805.90

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Solution

The fourth proportional to 12,355.48, 18,533.17 and 6,805.90 is: 10,208.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,355.48 : 18,533.17 = 6,805.90 : x
  2. Step 2: Convert to fraction form
    12,355.48/18,533.17 = 6,805.90/x
  3. Step 3: Cross multiply
    12,355.48x = 18,533.17 × 6,805.90
  4. Step 4: Simplify right side
    12,355.48x = 126,134,901.70
  5. Step 5: Solve for x
    x = 126,134,901.70/12,355.48
  6. Step 6: Final answer
    x = 10,208.82

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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.