Home / 19,519.74-26,940.40-11,970.24

Finding the Fourth Proportional to 19,519.74, 26,940.40 and 11,970.24

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Solution

The fourth proportional to 19,519.74, 26,940.40 and 11,970.24 is: 16,520.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,519.74 : 26,940.40 = 11,970.24 : x
  2. Step 2: Convert to fraction form
    19,519.74/26,940.40 = 11,970.24/x
  3. Step 3: Cross multiply
    19,519.74x = 26,940.40 × 11,970.24
  4. Step 4: Simplify right side
    19,519.74x = 322,483,053.70
  5. Step 5: Solve for x
    x = 322,483,053.70/19,519.74
  6. Step 6: Final answer
    x = 16,520.87

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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.