Home / 12,260.72-16,924.95-8,287.21

Finding the Fourth Proportional to 12,260.72, 16,924.95 and 8,287.21

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Solution

The fourth proportional to 12,260.72, 16,924.95 and 8,287.21 is: 11,439.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,260.72 : 16,924.95 = 8,287.21 : x
  2. Step 2: Convert to fraction form
    12,260.72/16,924.95 = 8,287.21/x
  3. Step 3: Cross multiply
    12,260.72x = 16,924.95 × 8,287.21
  4. Step 4: Simplify right side
    12,260.72x = 140,260,636.05
  5. Step 5: Solve for x
    x = 140,260,636.05/12,260.72
  6. Step 6: Final answer
    x = 11,439.84

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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.