Home / 13,321.08-19,947.44-12,926.90

Finding the Fourth Proportional to 13,321.08, 19,947.44 and 12,926.90

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Solution

The fourth proportional to 13,321.08, 19,947.44 and 12,926.90 is: 19,357.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321.08 : 19,947.44 = 12,926.90 : x
  2. Step 2: Convert to fraction form
    13,321.08/19,947.44 = 12,926.90/x
  3. Step 3: Cross multiply
    13,321.08x = 19,947.44 × 12,926.90
  4. Step 4: Simplify right side
    13,321.08x = 257,858,562.14
  5. Step 5: Solve for x
    x = 257,858,562.14/13,321.08
  6. Step 6: Final answer
    x = 19,357.18

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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.