Home / 26,258.09-39,387.11-7,790.09

Finding the Fourth Proportional to 26,258.09, 39,387.11 and 7,790.09

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Solution

The fourth proportional to 26,258.09, 39,387.11 and 7,790.09 is: 11,685.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,258.09 : 39,387.11 = 7,790.09 : x
  2. Step 2: Convert to fraction form
    26,258.09/39,387.11 = 7,790.09/x
  3. Step 3: Cross multiply
    26,258.09x = 39,387.11 × 7,790.09
  4. Step 4: Simplify right side
    26,258.09x = 306,828,895.85
  5. Step 5: Solve for x
    x = 306,828,895.85/26,258.09
  6. Step 6: Final answer
    x = 11,685.12

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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.