Home / 11,133.88-15,366.17-6,418.19

Finding the Fourth Proportional to 11,133.88, 15,366.17 and 6,418.19

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Solution

The fourth proportional to 11,133.88, 15,366.17 and 6,418.19 is: 8,857.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,133.88 : 15,366.17 = 6,418.19 : x
  2. Step 2: Convert to fraction form
    11,133.88/15,366.17 = 6,418.19/x
  3. Step 3: Cross multiply
    11,133.88x = 15,366.17 × 6,418.19
  4. Step 4: Simplify right side
    11,133.88x = 98,623,053.09
  5. Step 5: Solve for x
    x = 98,623,053.09/11,133.88
  6. Step 6: Final answer
    x = 8,857.93

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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.