Home / 19,519.50-26,929.56-12,808.83

Finding the Fourth Proportional to 19,519.50, 26,929.56 and 12,808.83

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Solution

The fourth proportional to 19,519.50, 26,929.56 and 12,808.83 is: 17,671.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,519.50 : 26,929.56 = 12,808.83 : x
  2. Step 2: Convert to fraction form
    19,519.50/26,929.56 = 12,808.83/x
  3. Step 3: Cross multiply
    19,519.50x = 26,929.56 × 12,808.83
  4. Step 4: Simplify right side
    19,519.50x = 344,936,156.01
  5. Step 5: Solve for x
    x = 344,936,156.01/19,519.50
  6. Step 6: Final answer
    x = 17,671.36

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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.