Home / 9,936.12-13,707.12-7,143.24

Finding the Fourth Proportional to 9,936.12, 13,707.12 and 7,143.24

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Solution

The fourth proportional to 9,936.12, 13,707.12 and 7,143.24 is: 9,854.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,936.12 : 13,707.12 = 7,143.24 : x
  2. Step 2: Convert to fraction form
    9,936.12/13,707.12 = 7,143.24/x
  3. Step 3: Cross multiply
    9,936.12x = 13,707.12 × 7,143.24
  4. Step 4: Simplify right side
    9,936.12x = 97,913,247.87
  5. Step 5: Solve for x
    x = 97,913,247.87/9,936.12
  6. Step 6: Final answer
    x = 9,854.27

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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.