Home / 8,261.34-11,389.40-5,899.38

Finding the Fourth Proportional to 8,261.34, 11,389.40 and 5,899.38

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Solution

The fourth proportional to 8,261.34, 11,389.40 and 5,899.38 is: 8,133.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,261.34 : 11,389.40 = 5,899.38 : x
  2. Step 2: Convert to fraction form
    8,261.34/11,389.40 = 5,899.38/x
  3. Step 3: Cross multiply
    8,261.34x = 11,389.40 × 5,899.38
  4. Step 4: Simplify right side
    8,261.34x = 67,190,398.57
  5. Step 5: Solve for x
    x = 67,190,398.57/8,261.34
  6. Step 6: Final answer
    x = 8,133.11

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Half scale
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Double scale
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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.