Home / 12,881.22-19,308.46-7,322.59

Finding the Fourth Proportional to 12,881.22, 19,308.46 and 7,322.59

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Solution

The fourth proportional to 12,881.22, 19,308.46 and 7,322.59 is: 10,976.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,881.22 : 19,308.46 = 7,322.59 : x
  2. Step 2: Convert to fraction form
    12,881.22/19,308.46 = 7,322.59/x
  3. Step 3: Cross multiply
    12,881.22x = 19,308.46 × 7,322.59
  4. Step 4: Simplify right side
    12,881.22x = 141,387,936.11
  5. Step 5: Solve for x
    x = 141,387,936.11/12,881.22
  6. Step 6: Final answer
    x = 10,976.28

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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.