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Finding the Fourth Proportional to 12,760.08, 17,602.92 and 8,051.28

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Solution

The fourth proportional to 12,760.08, 17,602.92 and 8,051.28 is: 11,106.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,760.08 : 17,602.92 = 8,051.28 : x
  2. Step 2: Convert to fraction form
    12,760.08/17,602.92 = 8,051.28/x
  3. Step 3: Cross multiply
    12,760.08x = 17,602.92 × 8,051.28
  4. Step 4: Simplify right side
    12,760.08x = 141,726,037.74
  5. Step 5: Solve for x
    x = 141,726,037.74/12,760.08
  6. Step 6: Final answer
    x = 11,106.99

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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.