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Finding the Fourth Proportional to 9,805.02, 13,531.02 and 5,328.78

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Solution

The fourth proportional to 9,805.02, 13,531.02 and 5,328.78 is: 7,353.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,805.02 : 13,531.02 = 5,328.78 : x
  2. Step 2: Convert to fraction form
    9,805.02/13,531.02 = 5,328.78/x
  3. Step 3: Cross multiply
    9,805.02x = 13,531.02 × 5,328.78
  4. Step 4: Simplify right side
    9,805.02x = 72,103,818.57
  5. Step 5: Solve for x
    x = 72,103,818.57/9,805.02
  6. Step 6: Final answer
    x = 7,353.76

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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.