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Finding the Fourth Proportional to 13,852.68, 20,785.50 and 8,014.20

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Solution

The fourth proportional to 13,852.68, 20,785.50 and 8,014.20 is: 12,025.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,852.68 : 20,785.50 = 8,014.20 : x
  2. Step 2: Convert to fraction form
    13,852.68/20,785.50 = 8,014.20/x
  3. Step 3: Cross multiply
    13,852.68x = 20,785.50 × 8,014.20
  4. Step 4: Simplify right side
    13,852.68x = 166,579,154.10
  5. Step 5: Solve for x
    x = 166,579,154.10/13,852.68
  6. Step 6: Final answer
    x = 12,025.05

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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.