Home / 13,585.42-20,378.16-3,724.84

Finding the Fourth Proportional to 13,585.42, 20,378.16 and 3,724.84

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Solution

The fourth proportional to 13,585.42, 20,378.16 and 3,724.84 is: 5,587.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,585.42 : 20,378.16 = 3,724.84 : x
  2. Step 2: Convert to fraction form
    13,585.42/20,378.16 = 3,724.84/x
  3. Step 3: Cross multiply
    13,585.42x = 20,378.16 × 3,724.84
  4. Step 4: Simplify right side
    13,585.42x = 75,905,385.49
  5. Step 5: Solve for x
    x = 75,905,385.49/13,585.42
  6. Step 6: Final answer
    x = 5,587.27

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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.