Home / 11,986.47-18,005.63-10,141.29

Finding the Fourth Proportional to 11,986.47, 18,005.63 and 10,141.29

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Solution

The fourth proportional to 11,986.47, 18,005.63 and 10,141.29 is: 15,233.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,986.47 : 18,005.63 = 10,141.29 : x
  2. Step 2: Convert to fraction form
    11,986.47/18,005.63 = 10,141.29/x
  3. Step 3: Cross multiply
    11,986.47x = 18,005.63 × 10,141.29
  4. Step 4: Simplify right side
    11,986.47x = 182,600,264.76
  5. Step 5: Solve for x
    x = 182,600,264.76/11,986.47
  6. Step 6: Final answer
    x = 15,233.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.