Home / 14,739.52-20,340.96-8,453.12

Finding the Fourth Proportional to 14,739.52, 20,340.96 and 8,453.12

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Solution

The fourth proportional to 14,739.52, 20,340.96 and 8,453.12 is: 11,665.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,739.52 : 20,340.96 = 8,453.12 : x
  2. Step 2: Convert to fraction form
    14,739.52/20,340.96 = 8,453.12/x
  3. Step 3: Cross multiply
    14,739.52x = 20,340.96 × 8,453.12
  4. Step 4: Simplify right side
    14,739.52x = 171,944,575.80
  5. Step 5: Solve for x
    x = 171,944,575.80/14,739.52
  6. Step 6: Final answer
    x = 11,665.55

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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.