Home / 8,385.82-11,574.34-5,553.29

Finding the Fourth Proportional to 8,385.82, 11,574.34 and 5,553.29

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Solution

The fourth proportional to 8,385.82, 11,574.34 and 5,553.29 is: 7,664.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,385.82 : 11,574.34 = 5,553.29 : x
  2. Step 2: Convert to fraction form
    8,385.82/11,574.34 = 5,553.29/x
  3. Step 3: Cross multiply
    8,385.82x = 11,574.34 × 5,553.29
  4. Step 4: Simplify right side
    8,385.82x = 64,275,681.63
  5. Step 5: Solve for x
    x = 64,275,681.63/8,385.82
  6. Step 6: Final answer
    x = 7,664.81

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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.