Home / 9,553.04-13,178.40-7,198.40

Finding the Fourth Proportional to 9,553.04, 13,178.40 and 7,198.40

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Solution

The fourth proportional to 9,553.04, 13,178.40 and 7,198.40 is: 9,930.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,553.04 : 13,178.40 = 7,198.40 : x
  2. Step 2: Convert to fraction form
    9,553.04/13,178.40 = 7,198.40/x
  3. Step 3: Cross multiply
    9,553.04x = 13,178.40 × 7,198.40
  4. Step 4: Simplify right side
    9,553.04x = 94,863,394.56
  5. Step 5: Solve for x
    x = 94,863,394.56/9,553.04
  6. Step 6: Final answer
    x = 9,930.18

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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.