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Finding the Fourth Proportional to 18,262.52, 27,393.06 and 12,699.48

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Solution

The fourth proportional to 18,262.52, 27,393.06 and 12,699.48 is: 19,048.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,262.52 : 27,393.06 = 12,699.48 : x
  2. Step 2: Convert to fraction form
    18,262.52/27,393.06 = 12,699.48/x
  3. Step 3: Cross multiply
    18,262.52x = 27,393.06 × 12,699.48
  4. Step 4: Simplify right side
    18,262.52x = 347,877,617.61
  5. Step 5: Solve for x
    x = 347,877,617.61/18,262.52
  6. Step 6: Final answer
    x = 19,048.72

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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.