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Finding the Fourth Proportional to 16,695.95, 22,993.94 and 12,905.15

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Solution

The fourth proportional to 16,695.95, 22,993.94 and 12,905.15 is: 17,773.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,695.95 : 22,993.94 = 12,905.15 : x
  2. Step 2: Convert to fraction form
    16,695.95/22,993.94 = 12,905.15/x
  3. Step 3: Cross multiply
    16,695.95x = 22,993.94 × 12,905.15
  4. Step 4: Simplify right side
    16,695.95x = 296,740,162.08
  5. Step 5: Solve for x
    x = 296,740,162.08/16,695.95
  6. Step 6: Final answer
    x = 17,773.19

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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.