Home / 11,178.25-15,426.26-6,142.43

Finding the Fourth Proportional to 11,178.25, 15,426.26 and 6,142.43

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Solution

The fourth proportional to 11,178.25, 15,426.26 and 6,142.43 is: 8,476.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,178.25 : 15,426.26 = 6,142.43 : x
  2. Step 2: Convert to fraction form
    11,178.25/15,426.26 = 6,142.43/x
  3. Step 3: Cross multiply
    11,178.25x = 15,426.26 × 6,142.43
  4. Step 4: Simplify right side
    11,178.25x = 94,754,722.21
  5. Step 5: Solve for x
    x = 94,754,722.21/11,178.25
  6. Step 6: Final answer
    x = 8,476.70

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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.