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Finding the Fourth Proportional to 13,295.89, 18,348.04 and 7,327.40

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Solution

The fourth proportional to 13,295.89, 18,348.04 and 7,327.40 is: 10,111.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,295.89 : 18,348.04 = 7,327.40 : x
  2. Step 2: Convert to fraction form
    13,295.89/18,348.04 = 7,327.40/x
  3. Step 3: Cross multiply
    13,295.89x = 18,348.04 × 7,327.40
  4. Step 4: Simplify right side
    13,295.89x = 134,443,428.30
  5. Step 5: Solve for x
    x = 134,443,428.30/13,295.89
  6. Step 6: Final answer
    x = 10,111.65

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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.