Home / 10,003.14-13,789.17-6,640.02

Finding the Fourth Proportional to 10,003.14, 13,789.17 and 6,640.02

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Solution

The fourth proportional to 10,003.14, 13,789.17 and 6,640.02 is: 9,153.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,003.14 : 13,789.17 = 6,640.02 : x
  2. Step 2: Convert to fraction form
    10,003.14/13,789.17 = 6,640.02/x
  3. Step 3: Cross multiply
    10,003.14x = 13,789.17 × 6,640.02
  4. Step 4: Simplify right side
    10,003.14x = 91,560,364.58
  5. Step 5: Solve for x
    x = 91,560,364.58/10,003.14
  6. Step 6: Final answer
    x = 9,153.16

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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.