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Finding the Fourth Proportional to 12,927.18, 17,838.72 and 7,260.96

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Solution

The fourth proportional to 12,927.18, 17,838.72 and 7,260.96 is: 10,019.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,927.18 : 17,838.72 = 7,260.96 : x
  2. Step 2: Convert to fraction form
    12,927.18/17,838.72 = 7,260.96/x
  3. Step 3: Cross multiply
    12,927.18x = 17,838.72 × 7,260.96
  4. Step 4: Simplify right side
    12,927.18x = 129,526,232.37
  5. Step 5: Solve for x
    x = 129,526,232.37/12,927.18
  6. Step 6: Final answer
    x = 10,019.68

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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.