Home / 15,389.78-23,084.67-8,811.41

Finding the Fourth Proportional to 15,389.78, 23,084.67 and 8,811.41

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Solution

The fourth proportional to 15,389.78, 23,084.67 and 8,811.41 is: 13,217.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,389.78 : 23,084.67 = 8,811.41 : x
  2. Step 2: Convert to fraction form
    15,389.78/23,084.67 = 8,811.41/x
  3. Step 3: Cross multiply
    15,389.78x = 23,084.67 × 8,811.41
  4. Step 4: Simplify right side
    15,389.78x = 203,408,492.08
  5. Step 5: Solve for x
    x = 203,408,492.08/15,389.78
  6. Step 6: Final answer
    x = 13,217.12

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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.