Home / 26,498.06-39,747.30-7,778.40

Finding the Fourth Proportional to 26,498.06, 39,747.30 and 7,778.40

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Solution

The fourth proportional to 26,498.06, 39,747.30 and 7,778.40 is: 11,667.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,498.06 : 39,747.30 = 7,778.40 : x
  2. Step 2: Convert to fraction form
    26,498.06/39,747.30 = 7,778.40/x
  3. Step 3: Cross multiply
    26,498.06x = 39,747.30 × 7,778.40
  4. Step 4: Simplify right side
    26,498.06x = 309,170,398.32
  5. Step 5: Solve for x
    x = 309,170,398.32/26,498.06
  6. Step 6: Final answer
    x = 11,667.66

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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.