Home / 7,009.70-9,673.38-3,866.09

Finding the Fourth Proportional to 7,009.70, 9,673.38 and 3,866.09

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Solution

The fourth proportional to 7,009.70, 9,673.38 and 3,866.09 is: 5,335.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,009.70 : 9,673.38 = 3,866.09 : x
  2. Step 2: Convert to fraction form
    7,009.70/9,673.38 = 3,866.09/x
  3. Step 3: Cross multiply
    7,009.70x = 9,673.38 × 3,866.09
  4. Step 4: Simplify right side
    7,009.70x = 37,398,109.32
  5. Step 5: Solve for x
    x = 37,398,109.32/7,009.70
  6. Step 6: Final answer
    x = 5,335.20

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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.