Home / 18,970.39-26,179.77-11,012.14

Finding the Fourth Proportional to 18,970.39, 26,179.77 and 11,012.14

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Solution

The fourth proportional to 18,970.39, 26,179.77 and 11,012.14 is: 15,197.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,970.39 : 26,179.77 = 11,012.14 : x
  2. Step 2: Convert to fraction form
    18,970.39/26,179.77 = 11,012.14/x
  3. Step 3: Cross multiply
    18,970.39x = 26,179.77 × 11,012.14
  4. Step 4: Simplify right side
    18,970.39x = 288,295,292.41
  5. Step 5: Solve for x
    x = 288,295,292.41/18,970.39
  6. Step 6: Final answer
    x = 15,197.12

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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.