Home / 12,871.44-19,296.18-12,259.08

Finding the Fourth Proportional to 12,871.44, 19,296.18 and 12,259.08

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Solution

The fourth proportional to 12,871.44, 19,296.18 and 12,259.08 is: 18,378.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,871.44 : 19,296.18 = 12,259.08 : x
  2. Step 2: Convert to fraction form
    12,871.44/19,296.18 = 12,259.08/x
  3. Step 3: Cross multiply
    12,871.44x = 19,296.18 × 12,259.08
  4. Step 4: Simplify right side
    12,871.44x = 236,553,414.31
  5. Step 5: Solve for x
    x = 236,553,414.31/12,871.44
  6. Step 6: Final answer
    x = 18,378.16

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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.