Home / 13,003.38-19,511.55-5,609.70

Finding the Fourth Proportional to 13,003.38, 19,511.55 and 5,609.70

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Solution

The fourth proportional to 13,003.38, 19,511.55 and 5,609.70 is: 8,417.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,003.38 : 19,511.55 = 5,609.70 : x
  2. Step 2: Convert to fraction form
    13,003.38/19,511.55 = 5,609.70/x
  3. Step 3: Cross multiply
    13,003.38x = 19,511.55 × 5,609.70
  4. Step 4: Simplify right side
    13,003.38x = 109,453,942.04
  5. Step 5: Solve for x
    x = 109,453,942.04/13,003.38
  6. Step 6: Final answer
    x = 8,417.35

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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.