Home / 14,165.85-21,248.79-3,777.60

Finding the Fourth Proportional to 14,165.85, 21,248.79 and 3,777.60

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Solution

The fourth proportional to 14,165.85, 21,248.79 and 3,777.60 is: 5,666.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,165.85 : 21,248.79 = 3,777.60 : x
  2. Step 2: Convert to fraction form
    14,165.85/21,248.79 = 3,777.60/x
  3. Step 3: Cross multiply
    14,165.85x = 21,248.79 × 3,777.60
  4. Step 4: Simplify right side
    14,165.85x = 80,269,429.10
  5. Step 5: Solve for x
    x = 80,269,429.10/14,165.85
  6. Step 6: Final answer
    x = 5,666.40

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Similar ratio
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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.