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Finding the Fourth Proportional to 13,295.84, 18,348.64 and 7,327.89

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Solution

The fourth proportional to 13,295.84, 18,348.64 and 7,327.89 is: 10,112.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,295.84 : 18,348.64 = 7,327.89 : x
  2. Step 2: Convert to fraction form
    13,295.84/18,348.64 = 7,327.89/x
  3. Step 3: Cross multiply
    13,295.84x = 18,348.64 × 7,327.89
  4. Step 4: Simplify right side
    13,295.84x = 134,456,890.07
  5. Step 5: Solve for x
    x = 134,456,890.07/13,295.84
  6. Step 6: Final answer
    x = 10,112.70

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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.