Home / 13,326.87-19,990.37-5,535.69

Finding the Fourth Proportional to 13,326.87, 19,990.37 and 5,535.69

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Solution

The fourth proportional to 13,326.87, 19,990.37 and 5,535.69 is: 8,303.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.87 : 19,990.37 = 5,535.69 : x
  2. Step 2: Convert to fraction form
    13,326.87/19,990.37 = 5,535.69/x
  3. Step 3: Cross multiply
    13,326.87x = 19,990.37 × 5,535.69
  4. Step 4: Simplify right side
    13,326.87x = 110,660,491.31
  5. Step 5: Solve for x
    x = 110,660,491.31/13,326.87
  6. Step 6: Final answer
    x = 8,303.56

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Double scale
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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.