Home / 13,752.84-20,626.65-3,889.74

Finding the Fourth Proportional to 13,752.84, 20,626.65 and 3,889.74

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Solution

The fourth proportional to 13,752.84, 20,626.65 and 3,889.74 is: 5,833.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,752.84 : 20,626.65 = 3,889.74 : x
  2. Step 2: Convert to fraction form
    13,752.84/20,626.65 = 3,889.74/x
  3. Step 3: Cross multiply
    13,752.84x = 20,626.65 × 3,889.74
  4. Step 4: Simplify right side
    13,752.84x = 80,232,305.57
  5. Step 5: Solve for x
    x = 80,232,305.57/13,752.84
  6. Step 6: Final answer
    x = 5,833.87

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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.