Home / 14,345.85-21,520.11-5,581.44

Finding the Fourth Proportional to 14,345.85, 21,520.11 and 5,581.44

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Solution

The fourth proportional to 14,345.85, 21,520.11 and 5,581.44 is: 8,372.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,345.85 : 21,520.11 = 5,581.44 : x
  2. Step 2: Convert to fraction form
    14,345.85/21,520.11 = 5,581.44/x
  3. Step 3: Cross multiply
    14,345.85x = 21,520.11 × 5,581.44
  4. Step 4: Simplify right side
    14,345.85x = 120,113,202.76
  5. Step 5: Solve for x
    x = 120,113,202.76/14,345.85
  6. Step 6: Final answer
    x = 8,372.68

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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.