Home / 12,066.90-16,652.78-6,761.54

Finding the Fourth Proportional to 12,066.90, 16,652.78 and 6,761.54

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Solution

The fourth proportional to 12,066.90, 16,652.78 and 6,761.54 is: 9,331.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,066.90 : 16,652.78 = 6,761.54 : x
  2. Step 2: Convert to fraction form
    12,066.90/16,652.78 = 6,761.54/x
  3. Step 3: Cross multiply
    12,066.90x = 16,652.78 × 6,761.54
  4. Step 4: Simplify right side
    12,066.90x = 112,598,321.01
  5. Step 5: Solve for x
    x = 112,598,321.01/12,066.90
  6. Step 6: Final answer
    x = 9,331.17

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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.