Home / 26,379.51-39,573.16-7,657.12

Finding the Fourth Proportional to 26,379.51, 39,573.16 and 7,657.12

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Solution

The fourth proportional to 26,379.51, 39,573.16 and 7,657.12 is: 11,486.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,379.51 : 39,573.16 = 7,657.12 : x
  2. Step 2: Convert to fraction form
    26,379.51/39,573.16 = 7,657.12/x
  3. Step 3: Cross multiply
    26,379.51x = 39,573.16 × 7,657.12
  4. Step 4: Simplify right side
    26,379.51x = 303,016,434.90
  5. Step 5: Solve for x
    x = 303,016,434.90/26,379.51
  6. Step 6: Final answer
    x = 11,486.81

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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.