Home / 26,408.13-39,618.69-7,688.33

Finding the Fourth Proportional to 26,408.13, 39,618.69 and 7,688.33

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Solution

The fourth proportional to 26,408.13, 39,618.69 and 7,688.33 is: 11,534.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,408.13 : 39,618.69 = 7,688.33 : x
  2. Step 2: Convert to fraction form
    26,408.13/39,618.69 = 7,688.33/x
  3. Step 3: Cross multiply
    26,408.13x = 39,618.69 × 7,688.33
  4. Step 4: Simplify right side
    26,408.13x = 304,601,373.11
  5. Step 5: Solve for x
    x = 304,601,373.11/26,408.13
  6. Step 6: Final answer
    x = 11,534.38

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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.