Home / 14,748.20-20,355.30-8,464.68

Finding the Fourth Proportional to 14,748.20, 20,355.30 and 8,464.68

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Solution

The fourth proportional to 14,748.20, 20,355.30 and 8,464.68 is: 11,682.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,748.20 : 20,355.30 = 8,464.68 : x
  2. Step 2: Convert to fraction form
    14,748.20/20,355.30 = 8,464.68/x
  3. Step 3: Cross multiply
    14,748.20x = 20,355.30 × 8,464.68
  4. Step 4: Simplify right side
    14,748.20x = 172,301,100.80
  5. Step 5: Solve for x
    x = 172,301,100.80/14,748.20
  6. Step 6: Final answer
    x = 11,682.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.