Home / 13,684.71-20,535.18-5,786.81

Finding the Fourth Proportional to 13,684.71, 20,535.18 and 5,786.81

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Solution

The fourth proportional to 13,684.71, 20,535.18 and 5,786.81 is: 8,683.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,684.71 : 20,535.18 = 5,786.81 : x
  2. Step 2: Convert to fraction form
    13,684.71/20,535.18 = 5,786.81/x
  3. Step 3: Cross multiply
    13,684.71x = 20,535.18 × 5,786.81
  4. Step 4: Simplify right side
    13,684.71x = 118,833,082.30
  5. Step 5: Solve for x
    x = 118,833,082.30/13,684.71
  6. Step 6: Final answer
    x = 8,683.64

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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.