Home / 10,146.80-13,948.82-8,725.28

Finding the Fourth Proportional to 10,146.80, 13,948.82 and 8,725.28

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Solution

The fourth proportional to 10,146.80, 13,948.82 and 8,725.28 is: 11,994.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,146.80 : 13,948.82 = 8,725.28 : x
  2. Step 2: Convert to fraction form
    10,146.80/13,948.82 = 8,725.28/x
  3. Step 3: Cross multiply
    10,146.80x = 13,948.82 × 8,725.28
  4. Step 4: Simplify right side
    10,146.80x = 121,707,360.17
  5. Step 5: Solve for x
    x = 121,707,360.17/10,146.80
  6. Step 6: Final answer
    x = 11,994.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.