Home / 19,711.50-27,206.44-12,998.34

Finding the Fourth Proportional to 19,711.50, 27,206.44 and 12,998.34

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Solution

The fourth proportional to 19,711.50, 27,206.44 and 12,998.34 is: 17,940.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,711.50 : 27,206.44 = 12,998.34 : x
  2. Step 2: Convert to fraction form
    19,711.50/27,206.44 = 12,998.34/x
  3. Step 3: Cross multiply
    19,711.50x = 27,206.44 × 12,998.34
  4. Step 4: Simplify right side
    19,711.50x = 353,638,557.31
  5. Step 5: Solve for x
    x = 353,638,557.31/19,711.50
  6. Step 6: Final answer
    x = 17,940.72

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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.