Home / 12,399.14-17,103.30-7,360.04

Finding the Fourth Proportional to 12,399.14, 17,103.30 and 7,360.04

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Solution

The fourth proportional to 12,399.14, 17,103.30 and 7,360.04 is: 10,152.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,399.14 : 17,103.30 = 7,360.04 : x
  2. Step 2: Convert to fraction form
    12,399.14/17,103.30 = 7,360.04/x
  3. Step 3: Cross multiply
    12,399.14x = 17,103.30 × 7,360.04
  4. Step 4: Simplify right side
    12,399.14x = 125,880,972.13
  5. Step 5: Solve for x
    x = 125,880,972.13/12,399.14
  6. Step 6: Final answer
    x = 10,152.40

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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.