Home / 18,719.30-28,084.29-6,247.50

Finding the Fourth Proportional to 18,719.30, 28,084.29 and 6,247.50

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Solution

The fourth proportional to 18,719.30, 28,084.29 and 6,247.50 is: 9,373.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,719.30 : 28,084.29 = 6,247.50 : x
  2. Step 2: Convert to fraction form
    18,719.30/28,084.29 = 6,247.50/x
  3. Step 3: Cross multiply
    18,719.30x = 28,084.29 × 6,247.50
  4. Step 4: Simplify right side
    18,719.30x = 175,456,473.03
  5. Step 5: Solve for x
    x = 175,456,473.03/18,719.30
  6. Step 6: Final answer
    x = 9,373.02

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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.