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Finding the Fourth Proportional to 12,630.51, 17,449.11 and 10,761.51

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Solution

The fourth proportional to 12,630.51, 17,449.11 and 10,761.51 is: 14,867.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,630.51 : 17,449.11 = 10,761.51 : x
  2. Step 2: Convert to fraction form
    12,630.51/17,449.11 = 10,761.51/x
  3. Step 3: Cross multiply
    12,630.51x = 17,449.11 × 10,761.51
  4. Step 4: Simplify right side
    12,630.51x = 187,778,771.76
  5. Step 5: Solve for x
    x = 187,778,771.76/12,630.51
  6. Step 6: Final answer
    x = 14,867.08

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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.