Home / 18,967.76-26,180.68-11,012.48

Finding the Fourth Proportional to 18,967.76, 26,180.68 and 11,012.48

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Solution

The fourth proportional to 18,967.76, 26,180.68 and 11,012.48 is: 15,200.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,967.76 : 26,180.68 = 11,012.48 : x
  2. Step 2: Convert to fraction form
    18,967.76/26,180.68 = 11,012.48/x
  3. Step 3: Cross multiply
    18,967.76x = 26,180.68 × 11,012.48
  4. Step 4: Simplify right side
    18,967.76x = 288,314,214.89
  5. Step 5: Solve for x
    x = 288,314,214.89/18,967.76
  6. Step 6: Final answer
    x = 15,200.22

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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.