Home / 13,758.99-20,628.40-4,393.61

Finding the Fourth Proportional to 13,758.99, 20,628.40 and 4,393.61

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Solution

The fourth proportional to 13,758.99, 20,628.40 and 4,393.61 is: 6,587.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,758.99 : 20,628.40 = 4,393.61 : x
  2. Step 2: Convert to fraction form
    13,758.99/20,628.40 = 4,393.61/x
  3. Step 3: Cross multiply
    13,758.99x = 20,628.40 × 4,393.61
  4. Step 4: Simplify right side
    13,758.99x = 90,633,103.64
  5. Step 5: Solve for x
    x = 90,633,103.64/13,758.99
  6. Step 6: Final answer
    x = 6,587.19

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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.