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Finding the Fourth Proportional to 9,385.57, 12,955.02 and 7,265.39

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Solution

The fourth proportional to 9,385.57, 12,955.02 and 7,265.39 is: 10,028.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,385.57 : 12,955.02 = 7,265.39 : x
  2. Step 2: Convert to fraction form
    9,385.57/12,955.02 = 7,265.39/x
  3. Step 3: Cross multiply
    9,385.57x = 12,955.02 × 7,265.39
  4. Step 4: Simplify right side
    9,385.57x = 94,123,272.76
  5. Step 5: Solve for x
    x = 94,123,272.76/9,385.57
  6. Step 6: Final answer
    x = 10,028.51

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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.