Home / 13,699.56-18,905.46-7,411.95

Finding the Fourth Proportional to 13,699.56, 18,905.46 and 7,411.95

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Solution

The fourth proportional to 13,699.56, 18,905.46 and 7,411.95 is: 10,228.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,699.56 : 18,905.46 = 7,411.95 : x
  2. Step 2: Convert to fraction form
    13,699.56/18,905.46 = 7,411.95/x
  3. Step 3: Cross multiply
    13,699.56x = 18,905.46 × 7,411.95
  4. Step 4: Simplify right side
    13,699.56x = 140,126,324.25
  5. Step 5: Solve for x
    x = 140,126,324.25/13,699.56
  6. Step 6: Final answer
    x = 10,228.53

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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.