Home / 13,867.21-20,813.17-6,475.76

Finding the Fourth Proportional to 13,867.21, 20,813.17 and 6,475.76

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Solution

The fourth proportional to 13,867.21, 20,813.17 and 6,475.76 is: 9,719.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867.21 : 20,813.17 = 6,475.76 : x
  2. Step 2: Convert to fraction form
    13,867.21/20,813.17 = 6,475.76/x
  3. Step 3: Cross multiply
    13,867.21x = 20,813.17 × 6,475.76
  4. Step 4: Simplify right side
    13,867.21x = 134,781,093.76
  5. Step 5: Solve for x
    x = 134,781,093.76/13,867.21
  6. Step 6: Final answer
    x = 9,719.41

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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.