Home / 26,386.20-39,579.30-7,666.20

Finding the Fourth Proportional to 26,386.20, 39,579.30 and 7,666.20

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Solution

The fourth proportional to 26,386.20, 39,579.30 and 7,666.20 is: 11,499.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,386.20 : 39,579.30 = 7,666.20 : x
  2. Step 2: Convert to fraction form
    26,386.20/39,579.30 = 7,666.20/x
  3. Step 3: Cross multiply
    26,386.20x = 39,579.30 × 7,666.20
  4. Step 4: Simplify right side
    26,386.20x = 303,422,829.66
  5. Step 5: Solve for x
    x = 303,422,829.66/26,386.20
  6. Step 6: Final answer
    x = 11,499.30

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Similar ratio
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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.