Home / 15,672.78-23,492.65-5,140.06

Finding the Fourth Proportional to 15,672.78, 23,492.65 and 5,140.06

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Solution

The fourth proportional to 15,672.78, 23,492.65 and 5,140.06 is: 7,704.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,672.78 : 23,492.65 = 5,140.06 : x
  2. Step 2: Convert to fraction form
    15,672.78/23,492.65 = 5,140.06/x
  3. Step 3: Cross multiply
    15,672.78x = 23,492.65 × 5,140.06
  4. Step 4: Simplify right side
    15,672.78x = 120,753,630.56
  5. Step 5: Solve for x
    x = 120,753,630.56/15,672.78
  6. Step 6: Final answer
    x = 7,704.67

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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.