Home / 18,970.74-26,179.20-11,012.76

Finding the Fourth Proportional to 18,970.74, 26,179.20 and 11,012.76

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Solution

The fourth proportional to 18,970.74, 26,179.20 and 11,012.76 is: 15,197.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,970.74 : 26,179.20 = 11,012.76 : x
  2. Step 2: Convert to fraction form
    18,970.74/26,179.20 = 11,012.76/x
  3. Step 3: Cross multiply
    18,970.74x = 26,179.20 × 11,012.76
  4. Step 4: Simplify right side
    18,970.74x = 288,305,246.59
  5. Step 5: Solve for x
    x = 288,305,246.59/18,970.74
  6. Step 6: Final answer
    x = 15,197.36

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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.