Home / 26,508.87-39,769.82-13,188.15

Finding the Fourth Proportional to 26,508.87, 39,769.82 and 13,188.15

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Solution

The fourth proportional to 26,508.87, 39,769.82 and 13,188.15 is: 19,785.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,508.87 : 39,769.82 = 13,188.15 : x
  2. Step 2: Convert to fraction form
    26,508.87/39,769.82 = 13,188.15/x
  3. Step 3: Cross multiply
    26,508.87x = 39,769.82 × 13,188.15
  4. Step 4: Simplify right side
    26,508.87x = 524,490,285.69
  5. Step 5: Solve for x
    x = 524,490,285.69/26,508.87
  6. Step 6: Final answer
    x = 19,785.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.