Home / 12,260.78-16,919.95-6,671.82

Finding the Fourth Proportional to 12,260.78, 16,919.95 and 6,671.82

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Solution

The fourth proportional to 12,260.78, 16,919.95 and 6,671.82 is: 9,207.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,260.78 : 16,919.95 = 6,671.82 : x
  2. Step 2: Convert to fraction form
    12,260.78/16,919.95 = 6,671.82/x
  3. Step 3: Cross multiply
    12,260.78x = 16,919.95 × 6,671.82
  4. Step 4: Simplify right side
    12,260.78x = 112,886,860.81
  5. Step 5: Solve for x
    x = 112,886,860.81/12,260.78
  6. Step 6: Final answer
    x = 9,207.15

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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.