Home / 12,001.08-16,542.54-8,458.68

Finding the Fourth Proportional to 12,001.08, 16,542.54 and 8,458.68

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Solution

The fourth proportional to 12,001.08, 16,542.54 and 8,458.68 is: 11,659.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,001.08 : 16,542.54 = 8,458.68 : x
  2. Step 2: Convert to fraction form
    12,001.08/16,542.54 = 8,458.68/x
  3. Step 3: Cross multiply
    12,001.08x = 16,542.54 × 8,458.68
  4. Step 4: Simplify right side
    12,001.08x = 139,928,052.25
  5. Step 5: Solve for x
    x = 139,928,052.25/12,001.08
  6. Step 6: Final answer
    x = 11,659.62

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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.