Home / 14,307.72-21,452.88-6,408.78

Finding the Fourth Proportional to 14,307.72, 21,452.88 and 6,408.78

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Solution

The fourth proportional to 14,307.72, 21,452.88 and 6,408.78 is: 9,609.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,307.72 : 21,452.88 = 6,408.78 : x
  2. Step 2: Convert to fraction form
    14,307.72/21,452.88 = 6,408.78/x
  3. Step 3: Cross multiply
    14,307.72x = 21,452.88 × 6,408.78
  4. Step 4: Simplify right side
    14,307.72x = 137,486,788.29
  5. Step 5: Solve for x
    x = 137,486,788.29/14,307.72
  6. Step 6: Final answer
    x = 9,609.27

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1.5x scale

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.