Home / 15,719.73-23,558.10-8,689.32

Finding the Fourth Proportional to 15,719.73, 23,558.10 and 8,689.32

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Solution

The fourth proportional to 15,719.73, 23,558.10 and 8,689.32 is: 13,022.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,719.73 : 23,558.10 = 8,689.32 : x
  2. Step 2: Convert to fraction form
    15,719.73/23,558.10 = 8,689.32/x
  3. Step 3: Cross multiply
    15,719.73x = 23,558.10 × 8,689.32
  4. Step 4: Simplify right side
    15,719.73x = 204,703,869.49
  5. Step 5: Solve for x
    x = 204,703,869.49/15,719.73
  6. Step 6: Final answer
    x = 13,022.10

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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.