Home / 13,588.35-20,405.16-9,174.48

Finding the Fourth Proportional to 13,588.35, 20,405.16 and 9,174.48

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Solution

The fourth proportional to 13,588.35, 20,405.16 and 9,174.48 is: 13,777.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,588.35 : 20,405.16 = 9,174.48 : x
  2. Step 2: Convert to fraction form
    13,588.35/20,405.16 = 9,174.48/x
  3. Step 3: Cross multiply
    13,588.35x = 20,405.16 × 9,174.48
  4. Step 4: Simplify right side
    13,588.35x = 187,206,732.32
  5. Step 5: Solve for x
    x = 187,206,732.32/13,588.35
  6. Step 6: Final answer
    x = 13,777.00

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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.