Home / 8,936.32-12,332.67-5,160.18

Finding the Fourth Proportional to 8,936.32, 12,332.67 and 5,160.18

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Solution

The fourth proportional to 8,936.32, 12,332.67 and 5,160.18 is: 7,121.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,936.32 : 12,332.67 = 5,160.18 : x
  2. Step 2: Convert to fraction form
    8,936.32/12,332.67 = 5,160.18/x
  3. Step 3: Cross multiply
    8,936.32x = 12,332.67 × 5,160.18
  4. Step 4: Simplify right side
    8,936.32x = 63,638,797.08
  5. Step 5: Solve for x
    x = 63,638,797.08/8,936.32
  6. Step 6: Final answer
    x = 7,121.37

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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.