Home / 13,346.91-18,418.44-7,378.50

Finding the Fourth Proportional to 13,346.91, 18,418.44 and 7,378.50

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Solution

The fourth proportional to 13,346.91, 18,418.44 and 7,378.50 is: 10,182.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,346.91 : 18,418.44 = 7,378.50 : x
  2. Step 2: Convert to fraction form
    13,346.91/18,418.44 = 7,378.50/x
  3. Step 3: Cross multiply
    13,346.91x = 18,418.44 × 7,378.50
  4. Step 4: Simplify right side
    13,346.91x = 135,900,459.54
  5. Step 5: Solve for x
    x = 135,900,459.54/13,346.91
  6. Step 6: Final answer
    x = 10,182.17

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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.