Home / 12,769.36-17,622.11-7,734.51

Finding the Fourth Proportional to 12,769.36, 17,622.11 and 7,734.51

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Solution

The fourth proportional to 12,769.36, 17,622.11 and 7,734.51 is: 10,673.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,769.36 : 17,622.11 = 7,734.51 : x
  2. Step 2: Convert to fraction form
    12,769.36/17,622.11 = 7,734.51/x
  3. Step 3: Cross multiply
    12,769.36x = 17,622.11 × 7,734.51
  4. Step 4: Simplify right side
    12,769.36x = 136,298,386.02
  5. Step 5: Solve for x
    x = 136,298,386.02/12,769.36
  6. Step 6: Final answer
    x = 10,673.86

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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.