Home / 15,986.06-23,987.20-10,781

Finding the Fourth Proportional to 15,986.06, 23,987.20 and 10,781

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Solution

The fourth proportional to 15,986.06, 23,987.20 and 10,781 is: 16,176.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,986.06 : 23,987.20 = 10,781 : x
  2. Step 2: Convert to fraction form
    15,986.06/23,987.20 = 10,781/x
  3. Step 3: Cross multiply
    15,986.06x = 23,987.20 × 10,781
  4. Step 4: Simplify right side
    15,986.06x = 258,606,003.20
  5. Step 5: Solve for x
    x = 258,606,003.20/15,986.06
  6. Step 6: Final answer
    x = 16,176.97

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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.