Home / 13,738.57-20,607.63-4,378.46

Finding the Fourth Proportional to 13,738.57, 20,607.63 and 4,378.46

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Solution

The fourth proportional to 13,738.57, 20,607.63 and 4,378.46 is: 6,567.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,738.57 : 20,607.63 = 4,378.46 : x
  2. Step 2: Convert to fraction form
    13,738.57/20,607.63 = 4,378.46/x
  3. Step 3: Cross multiply
    13,738.57x = 20,607.63 × 4,378.46
  4. Step 4: Simplify right side
    13,738.57x = 90,229,683.65
  5. Step 5: Solve for x
    x = 90,229,683.65/13,738.57
  6. Step 6: Final answer
    x = 6,567.62

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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.