Home / 12,769.14-17,620.35-7,103.16

Finding the Fourth Proportional to 12,769.14, 17,620.35 and 7,103.16

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Solution

The fourth proportional to 12,769.14, 17,620.35 and 7,103.16 is: 9,801.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,769.14 : 17,620.35 = 7,103.16 : x
  2. Step 2: Convert to fraction form
    12,769.14/17,620.35 = 7,103.16/x
  3. Step 3: Cross multiply
    12,769.14x = 17,620.35 × 7,103.16
  4. Step 4: Simplify right side
    12,769.14x = 125,160,165.31
  5. Step 5: Solve for x
    x = 125,160,165.31/12,769.14
  6. Step 6: Final answer
    x = 9,801.77

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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.