Home / 19,199.59-28,812.36-6,719.72

Finding the Fourth Proportional to 19,199.59, 28,812.36 and 6,719.72

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Solution

The fourth proportional to 19,199.59, 28,812.36 and 6,719.72 is: 10,084.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,199.59 : 28,812.36 = 6,719.72 : x
  2. Step 2: Convert to fraction form
    19,199.59/28,812.36 = 6,719.72/x
  3. Step 3: Cross multiply
    19,199.59x = 28,812.36 × 6,719.72
  4. Step 4: Simplify right side
    19,199.59x = 193,611,037.66
  5. Step 5: Solve for x
    x = 193,611,037.66/19,199.59
  6. Step 6: Final answer
    x = 10,084.12

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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.