Home / 12,259.44-16,919.76-11,508.72

Finding the Fourth Proportional to 12,259.44, 16,919.76 and 11,508.72

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Solution

The fourth proportional to 12,259.44, 16,919.76 and 11,508.72 is: 15,883.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,259.44 : 16,919.76 = 11,508.72 : x
  2. Step 2: Convert to fraction form
    12,259.44/16,919.76 = 11,508.72/x
  3. Step 3: Cross multiply
    12,259.44x = 16,919.76 × 11,508.72
  4. Step 4: Simplify right side
    12,259.44x = 194,724,780.31
  5. Step 5: Solve for x
    x = 194,724,780.31/12,259.44
  6. Step 6: Final answer
    x = 15,883.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.