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Finding the Fourth Proportional to 12,482.35, 17,221.48 and 8,235.52

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Solution

The fourth proportional to 12,482.35, 17,221.48 and 8,235.52 is: 11,362.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482.35 : 17,221.48 = 8,235.52 : x
  2. Step 2: Convert to fraction form
    12,482.35/17,221.48 = 8,235.52/x
  3. Step 3: Cross multiply
    12,482.35x = 17,221.48 × 8,235.52
  4. Step 4: Simplify right side
    12,482.35x = 141,827,842.97
  5. Step 5: Solve for x
    x = 141,827,842.97/12,482.35
  6. Step 6: Final answer
    x = 11,362.27

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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.