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Finding the Fourth Proportional to 9,287.03, 12,813.89 and 5,253.95

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Solution

The fourth proportional to 9,287.03, 12,813.89 and 5,253.95 is: 7,249.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,287.03 : 12,813.89 = 5,253.95 : x
  2. Step 2: Convert to fraction form
    9,287.03/12,813.89 = 5,253.95/x
  3. Step 3: Cross multiply
    9,287.03x = 12,813.89 × 5,253.95
  4. Step 4: Simplify right side
    9,287.03x = 67,323,447.03
  5. Step 5: Solve for x
    x = 67,323,447.03/9,287.03
  6. Step 6: Final answer
    x = 7,249.19

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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.