Home / 8,725.68-13,146.75-7,893.72

Finding the Fourth Proportional to 8,725.68, 13,146.75 and 7,893.72

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Solution

The fourth proportional to 8,725.68, 13,146.75 and 7,893.72 is: 11,893.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,725.68 : 13,146.75 = 7,893.72 : x
  2. Step 2: Convert to fraction form
    8,725.68/13,146.75 = 7,893.72/x
  3. Step 3: Cross multiply
    8,725.68x = 13,146.75 × 7,893.72
  4. Step 4: Simplify right side
    8,725.68x = 103,776,763.41
  5. Step 5: Solve for x
    x = 103,776,763.41/8,725.68
  6. Step 6: Final answer
    x = 11,893.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.