Home / 13,785.81-20,682.18-4,426.67

Finding the Fourth Proportional to 13,785.81, 20,682.18 and 4,426.67

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Solution

The fourth proportional to 13,785.81, 20,682.18 and 4,426.67 is: 6,641.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,785.81 : 20,682.18 = 4,426.67 : x
  2. Step 2: Convert to fraction form
    13,785.81/20,682.18 = 4,426.67/x
  3. Step 3: Cross multiply
    13,785.81x = 20,682.18 × 4,426.67
  4. Step 4: Simplify right side
    13,785.81x = 91,553,082.33
  5. Step 5: Solve for x
    x = 91,553,082.33/13,785.81
  6. Step 6: Final answer
    x = 6,641.11

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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.