Home / 13,750.36-20,626.25-4,390.61

Finding the Fourth Proportional to 13,750.36, 20,626.25 and 4,390.61

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Solution

The fourth proportional to 13,750.36, 20,626.25 and 4,390.61 is: 6,586.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,750.36 : 20,626.25 = 4,390.61 : x
  2. Step 2: Convert to fraction form
    13,750.36/20,626.25 = 4,390.61/x
  3. Step 3: Cross multiply
    13,750.36x = 20,626.25 × 4,390.61
  4. Step 4: Simplify right side
    13,750.36x = 90,561,694.43
  5. Step 5: Solve for x
    x = 90,561,694.43/13,750.36
  6. Step 6: Final answer
    x = 6,586.13

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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.