Home / 12,936.75-17,854.88-7,632.87

Finding the Fourth Proportional to 12,936.75, 17,854.88 and 7,632.87

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Solution

The fourth proportional to 12,936.75, 17,854.88 and 7,632.87 is: 10,534.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,936.75 : 17,854.88 = 7,632.87 : x
  2. Step 2: Convert to fraction form
    12,936.75/17,854.88 = 7,632.87/x
  3. Step 3: Cross multiply
    12,936.75x = 17,854.88 × 7,632.87
  4. Step 4: Simplify right side
    12,936.75x = 136,283,939.74
  5. Step 5: Solve for x
    x = 136,283,939.74/12,936.75
  6. Step 6: Final answer
    x = 10,534.64

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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.