Home / 8,936.27-12,332.63-5,160.13

Finding the Fourth Proportional to 8,936.27, 12,332.63 and 5,160.13

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Solution

The fourth proportional to 8,936.27, 12,332.63 and 5,160.13 is: 7,121.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,936.27 : 12,332.63 = 5,160.13 : x
  2. Step 2: Convert to fraction form
    8,936.27/12,332.63 = 5,160.13/x
  3. Step 3: Cross multiply
    8,936.27x = 12,332.63 × 5,160.13
  4. Step 4: Simplify right side
    8,936.27x = 63,637,974.04
  5. Step 5: Solve for x
    x = 63,637,974.04/8,936.27
  6. Step 6: Final answer
    x = 7,121.31

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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.