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Finding the Fourth Proportional to 12,695.73, 19,054.56 and 8,802.87

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Solution

The fourth proportional to 12,695.73, 19,054.56 and 8,802.87 is: 13,211.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,695.73 : 19,054.56 = 8,802.87 : x
  2. Step 2: Convert to fraction form
    12,695.73/19,054.56 = 8,802.87/x
  3. Step 3: Cross multiply
    12,695.73x = 19,054.56 × 8,802.87
  4. Step 4: Simplify right side
    12,695.73x = 167,734,814.59
  5. Step 5: Solve for x
    x = 167,734,814.59/12,695.73
  6. Step 6: Final answer
    x = 13,211.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.