Home / 26,670.30-39,961.60-9,130.56

Finding the Fourth Proportional to 26,670.30, 39,961.60 and 9,130.56

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Solution

The fourth proportional to 26,670.30, 39,961.60 and 9,130.56 is: 13,680.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,670.30 : 39,961.60 = 9,130.56 : x
  2. Step 2: Convert to fraction form
    26,670.30/39,961.60 = 9,130.56/x
  3. Step 3: Cross multiply
    26,670.30x = 39,961.60 × 9,130.56
  4. Step 4: Simplify right side
    26,670.30x = 364,871,786.50
  5. Step 5: Solve for x
    x = 364,871,786.50/26,670.30
  6. Step 6: Final answer
    x = 13,680.83

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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.