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Finding the Fourth Proportional to 9,353.48, 12,910.48 and 5,528.66

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Solution

The fourth proportional to 9,353.48, 12,910.48 and 5,528.66 is: 7,631.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,353.48 : 12,910.48 = 5,528.66 : x
  2. Step 2: Convert to fraction form
    9,353.48/12,910.48 = 5,528.66/x
  3. Step 3: Cross multiply
    9,353.48x = 12,910.48 × 5,528.66
  4. Step 4: Simplify right side
    9,353.48x = 71,377,672.81
  5. Step 5: Solve for x
    x = 71,377,672.81/9,353.48
  6. Step 6: Final answer
    x = 7,631.13

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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.