Home / 13,212.72-19,819.35-4,328.10

Finding the Fourth Proportional to 13,212.72, 19,819.35 and 4,328.10

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Solution

The fourth proportional to 13,212.72, 19,819.35 and 4,328.10 is: 6,492.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.72 : 19,819.35 = 4,328.10 : x
  2. Step 2: Convert to fraction form
    13,212.72/19,819.35 = 4,328.10/x
  3. Step 3: Cross multiply
    13,212.72x = 19,819.35 × 4,328.10
  4. Step 4: Simplify right side
    13,212.72x = 85,780,128.74
  5. Step 5: Solve for x
    x = 85,780,128.74/13,212.72
  6. Step 6: Final answer
    x = 6,492.24

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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.