Home / 14,132.78-21,199.50-4,272.02

Finding the Fourth Proportional to 14,132.78, 21,199.50 and 4,272.02

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Solution

The fourth proportional to 14,132.78, 21,199.50 and 4,272.02 is: 6,408.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,132.78 : 21,199.50 = 4,272.02 : x
  2. Step 2: Convert to fraction form
    14,132.78/21,199.50 = 4,272.02/x
  3. Step 3: Cross multiply
    14,132.78x = 21,199.50 × 4,272.02
  4. Step 4: Simplify right side
    14,132.78x = 90,564,581.99
  5. Step 5: Solve for x
    x = 90,564,581.99/14,132.78
  6. Step 6: Final answer
    x = 6,408.12

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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.