Home / 11,179.05-15,426.09-6,143.21

Finding the Fourth Proportional to 11,179.05, 15,426.09 and 6,143.21

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Solution

The fourth proportional to 11,179.05, 15,426.09 and 6,143.21 is: 8,477.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,179.05 : 15,426.09 = 6,143.21 : x
  2. Step 2: Convert to fraction form
    11,179.05/15,426.09 = 6,143.21/x
  3. Step 3: Cross multiply
    11,179.05x = 15,426.09 × 6,143.21
  4. Step 4: Simplify right side
    11,179.05x = 94,765,679.63
  5. Step 5: Solve for x
    x = 94,765,679.63/11,179.05
  6. Step 6: Final answer
    x = 8,477.08

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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.