Home / 12,305.84-18,432.60-11,424.56

Finding the Fourth Proportional to 12,305.84, 18,432.60 and 11,424.56

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Solution

The fourth proportional to 12,305.84, 18,432.60 and 11,424.56 is: 17,112.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,305.84 : 18,432.60 = 11,424.56 : x
  2. Step 2: Convert to fraction form
    12,305.84/18,432.60 = 11,424.56/x
  3. Step 3: Cross multiply
    12,305.84x = 18,432.60 × 11,424.56
  4. Step 4: Simplify right side
    12,305.84x = 210,584,344.66
  5. Step 5: Solve for x
    x = 210,584,344.66/12,305.84
  6. Step 6: Final answer
    x = 17,112.55

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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.