Home / 12,110.40-16,712.73-7,331.22

Finding the Fourth Proportional to 12,110.40, 16,712.73 and 7,331.22

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Solution

The fourth proportional to 12,110.40, 16,712.73 and 7,331.22 is: 10,117.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,110.40 : 16,712.73 = 7,331.22 : x
  2. Step 2: Convert to fraction form
    12,110.40/16,712.73 = 7,331.22/x
  3. Step 3: Cross multiply
    12,110.40x = 16,712.73 × 7,331.22
  4. Step 4: Simplify right side
    12,110.40x = 122,524,700.43
  5. Step 5: Solve for x
    x = 122,524,700.43/12,110.40
  6. Step 6: Final answer
    x = 10,117.31

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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.