Home / 13,739.88-20,586.28-9,228.48

Finding the Fourth Proportional to 13,739.88, 20,586.28 and 9,228.48

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Solution

The fourth proportional to 13,739.88, 20,586.28 and 9,228.48 is: 13,826.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,739.88 : 20,586.28 = 9,228.48 : x
  2. Step 2: Convert to fraction form
    13,739.88/20,586.28 = 9,228.48/x
  3. Step 3: Cross multiply
    13,739.88x = 20,586.28 × 9,228.48
  4. Step 4: Simplify right side
    13,739.88x = 189,980,073.25
  5. Step 5: Solve for x
    x = 189,980,073.25/13,739.88
  6. Step 6: Final answer
    x = 13,826.91

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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.