Home / 18,899.85-28,352.83-5,749.13

Finding the Fourth Proportional to 18,899.85, 28,352.83 and 5,749.13

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Solution

The fourth proportional to 18,899.85, 28,352.83 and 5,749.13 is: 8,624.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,899.85 : 28,352.83 = 5,749.13 : x
  2. Step 2: Convert to fraction form
    18,899.85/28,352.83 = 5,749.13/x
  3. Step 3: Cross multiply
    18,899.85x = 28,352.83 × 5,749.13
  4. Step 4: Simplify right side
    18,899.85x = 163,003,949.40
  5. Step 5: Solve for x
    x = 163,003,949.40/18,899.85
  6. Step 6: Final answer
    x = 8,624.62

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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.