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Finding the Fourth Proportional to 9,383.40, 12,943.08 and 7,393.32

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Solution

The fourth proportional to 9,383.40, 12,943.08 and 7,393.32 is: 10,198.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,383.40 : 12,943.08 = 7,393.32 : x
  2. Step 2: Convert to fraction form
    9,383.40/12,943.08 = 7,393.32/x
  3. Step 3: Cross multiply
    9,383.40x = 12,943.08 × 7,393.32
  4. Step 4: Simplify right side
    9,383.40x = 95,692,332.23
  5. Step 5: Solve for x
    x = 95,692,332.23/9,383.40
  6. Step 6: Final answer
    x = 10,198.04

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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.