Home / 12,588.47-17,371.79-6,845.78

Finding the Fourth Proportional to 12,588.47, 17,371.79 and 6,845.78

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Solution

The fourth proportional to 12,588.47, 17,371.79 and 6,845.78 is: 9,447.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,588.47 : 17,371.79 = 6,845.78 : x
  2. Step 2: Convert to fraction form
    12,588.47/17,371.79 = 6,845.78/x
  3. Step 3: Cross multiply
    12,588.47x = 17,371.79 × 6,845.78
  4. Step 4: Simplify right side
    12,588.47x = 118,923,395.64
  5. Step 5: Solve for x
    x = 118,923,395.64/12,588.47
  6. Step 6: Final answer
    x = 9,447.01

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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.