Home / 19,778.70-27,294.60-10,826.20

Finding the Fourth Proportional to 19,778.70, 27,294.60 and 10,826.20

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Solution

The fourth proportional to 19,778.70, 27,294.60 and 10,826.20 is: 14,940.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,778.70 : 27,294.60 = 10,826.20 : x
  2. Step 2: Convert to fraction form
    19,778.70/27,294.60 = 10,826.20/x
  3. Step 3: Cross multiply
    19,778.70x = 27,294.60 × 10,826.20
  4. Step 4: Simplify right side
    19,778.70x = 295,496,798.52
  5. Step 5: Solve for x
    x = 295,496,798.52/19,778.70
  6. Step 6: Final answer
    x = 14,940.15

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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.