Home / 12,679.74-19,011.11-11,360.25

Finding the Fourth Proportional to 12,679.74, 19,011.11 and 11,360.25

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Solution

The fourth proportional to 12,679.74, 19,011.11 and 11,360.25 is: 17,032.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,679.74 : 19,011.11 = 11,360.25 : x
  2. Step 2: Convert to fraction form
    12,679.74/19,011.11 = 11,360.25/x
  3. Step 3: Cross multiply
    12,679.74x = 19,011.11 × 11,360.25
  4. Step 4: Simplify right side
    12,679.74x = 215,970,905.58
  5. Step 5: Solve for x
    x = 215,970,905.58/12,679.74
  6. Step 6: Final answer
    x = 17,032.76

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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.