Home / 8,936.34-12,332.07-5,160.30

Finding the Fourth Proportional to 8,936.34, 12,332.07 and 5,160.30

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Solution

The fourth proportional to 8,936.34, 12,332.07 and 5,160.30 is: 7,121.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,936.34 : 12,332.07 = 5,160.30 : x
  2. Step 2: Convert to fraction form
    8,936.34/12,332.07 = 5,160.30/x
  3. Step 3: Cross multiply
    8,936.34x = 12,332.07 × 5,160.30
  4. Step 4: Simplify right side
    8,936.34x = 63,637,180.82
  5. Step 5: Solve for x
    x = 63,637,180.82/8,936.34
  6. Step 6: Final answer
    x = 7,121.17

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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.