Home / 8,659.09-11,954.34-5,679.31

Finding the Fourth Proportional to 8,659.09, 11,954.34 and 5,679.31

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Solution

The fourth proportional to 8,659.09, 11,954.34 and 5,679.31 is: 7,840.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,659.09 : 11,954.34 = 5,679.31 : x
  2. Step 2: Convert to fraction form
    8,659.09/11,954.34 = 5,679.31/x
  3. Step 3: Cross multiply
    8,659.09x = 11,954.34 × 5,679.31
  4. Step 4: Simplify right side
    8,659.09x = 67,892,402.71
  5. Step 5: Solve for x
    x = 67,892,402.71/8,659.09
  6. Step 6: Final answer
    x = 7,840.59

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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.