Home / 15,986.54-23,981.85-8,580.84

Finding the Fourth Proportional to 15,986.54, 23,981.85 and 8,580.84

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Solution

The fourth proportional to 15,986.54, 23,981.85 and 8,580.84 is: 12,872.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,986.54 : 23,981.85 = 8,580.84 : x
  2. Step 2: Convert to fraction form
    15,986.54/23,981.85 = 8,580.84/x
  3. Step 3: Cross multiply
    15,986.54x = 23,981.85 × 8,580.84
  4. Step 4: Simplify right side
    15,986.54x = 205,784,417.75
  5. Step 5: Solve for x
    x = 205,784,417.75/15,986.54
  6. Step 6: Final answer
    x = 12,872.36

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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.