Home / 11,840.45-16,319.25-8,648.51

Finding the Fourth Proportional to 11,840.45, 16,319.25 and 8,648.51

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Solution

The fourth proportional to 11,840.45, 16,319.25 and 8,648.51 is: 11,919.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,840.45 : 16,319.25 = 8,648.51 : x
  2. Step 2: Convert to fraction form
    11,840.45/16,319.25 = 8,648.51/x
  3. Step 3: Cross multiply
    11,840.45x = 16,319.25 × 8,648.51
  4. Step 4: Simplify right side
    11,840.45x = 141,137,115.22
  5. Step 5: Solve for x
    x = 141,137,115.22/11,840.45
  6. Step 6: Final answer
    x = 11,919.92

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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.