Home / 11,145.98-16,719.78-4,572.20

Finding the Fourth Proportional to 11,145.98, 16,719.78 and 4,572.20

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Solution

The fourth proportional to 11,145.98, 16,719.78 and 4,572.20 is: 6,858.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,145.98 : 16,719.78 = 4,572.20 : x
  2. Step 2: Convert to fraction form
    11,145.98/16,719.78 = 4,572.20/x
  3. Step 3: Cross multiply
    11,145.98x = 16,719.78 × 4,572.20
  4. Step 4: Simplify right side
    11,145.98x = 76,446,178.12
  5. Step 5: Solve for x
    x = 76,446,178.12/11,145.98
  6. Step 6: Final answer
    x = 6,858.63

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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.