Home / 18,867.06-28,295.10-5,719.50

Finding the Fourth Proportional to 18,867.06, 28,295.10 and 5,719.50

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Solution

The fourth proportional to 18,867.06, 28,295.10 and 5,719.50 is: 8,577.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,867.06 : 28,295.10 = 5,719.50 : x
  2. Step 2: Convert to fraction form
    18,867.06/28,295.10 = 5,719.50/x
  3. Step 3: Cross multiply
    18,867.06x = 28,295.10 × 5,719.50
  4. Step 4: Simplify right side
    18,867.06x = 161,833,824.45
  5. Step 5: Solve for x
    x = 161,833,824.45/18,867.06
  6. Step 6: Final answer
    x = 8,577.59

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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.