Home / 11,822.16-16,312.88-6,517.20

Finding the Fourth Proportional to 11,822.16, 16,312.88 and 6,517.20

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Solution

The fourth proportional to 11,822.16, 16,312.88 and 6,517.20 is: 8,992.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,822.16 : 16,312.88 = 6,517.20 : x
  2. Step 2: Convert to fraction form
    11,822.16/16,312.88 = 6,517.20/x
  3. Step 3: Cross multiply
    11,822.16x = 16,312.88 × 6,517.20
  4. Step 4: Simplify right side
    11,822.16x = 106,314,301.54
  5. Step 5: Solve for x
    x = 106,314,301.54/11,822.16
  6. Step 6: Final answer
    x = 8,992.80

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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.