Home / 12,359.08-17,047.68-8,110.42

Finding the Fourth Proportional to 12,359.08, 17,047.68 and 8,110.42

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Solution

The fourth proportional to 12,359.08, 17,047.68 and 8,110.42 is: 11,187.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,359.08 : 17,047.68 = 8,110.42 : x
  2. Step 2: Convert to fraction form
    12,359.08/17,047.68 = 8,110.42/x
  3. Step 3: Cross multiply
    12,359.08x = 17,047.68 × 8,110.42
  4. Step 4: Simplify right side
    12,359.08x = 138,263,844.83
  5. Step 5: Solve for x
    x = 138,263,844.83/12,359.08
  6. Step 6: Final answer
    x = 11,187.23

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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.