Home / 12,362.76-17,048.07-8,105.40

Finding the Fourth Proportional to 12,362.76, 17,048.07 and 8,105.40

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Solution

The fourth proportional to 12,362.76, 17,048.07 and 8,105.40 is: 11,177.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,362.76 : 17,048.07 = 8,105.40 : x
  2. Step 2: Convert to fraction form
    12,362.76/17,048.07 = 8,105.40/x
  3. Step 3: Cross multiply
    12,362.76x = 17,048.07 × 8,105.40
  4. Step 4: Simplify right side
    12,362.76x = 138,181,426.58
  5. Step 5: Solve for x
    x = 138,181,426.58/12,362.76
  6. Step 6: Final answer
    x = 11,177.23

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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.