Home / 15,811.02-23,719.95-8,414.40

Finding the Fourth Proportional to 15,811.02, 23,719.95 and 8,414.40

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Solution

The fourth proportional to 15,811.02, 23,719.95 and 8,414.40 is: 12,623.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,811.02 : 23,719.95 = 8,414.40 : x
  2. Step 2: Convert to fraction form
    15,811.02/23,719.95 = 8,414.40/x
  3. Step 3: Cross multiply
    15,811.02x = 23,719.95 × 8,414.40
  4. Step 4: Simplify right side
    15,811.02x = 199,589,147.28
  5. Step 5: Solve for x
    x = 199,589,147.28/15,811.02
  6. Step 6: Final answer
    x = 12,623.42

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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.