Home / 14,587.52-20,129.58-8,212.07

Finding the Fourth Proportional to 14,587.52, 20,129.58 and 8,212.07

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Solution

The fourth proportional to 14,587.52, 20,129.58 and 8,212.07 is: 11,331.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,587.52 : 20,129.58 = 8,212.07 : x
  2. Step 2: Convert to fraction form
    14,587.52/20,129.58 = 8,212.07/x
  3. Step 3: Cross multiply
    14,587.52x = 20,129.58 × 8,212.07
  4. Step 4: Simplify right side
    14,587.52x = 165,305,520.03
  5. Step 5: Solve for x
    x = 165,305,520.03/14,587.52
  6. Step 6: Final answer
    x = 11,331.98

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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.