Home / 8,695.36-11,997.72-5,159.74

Finding the Fourth Proportional to 8,695.36, 11,997.72 and 5,159.74

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Solution

The fourth proportional to 8,695.36, 11,997.72 and 5,159.74 is: 7,119.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,695.36 : 11,997.72 = 5,159.74 : x
  2. Step 2: Convert to fraction form
    8,695.36/11,997.72 = 5,159.74/x
  3. Step 3: Cross multiply
    8,695.36x = 11,997.72 × 5,159.74
  4. Step 4: Simplify right side
    8,695.36x = 61,905,115.79
  5. Step 5: Solve for x
    x = 61,905,115.79/8,695.36
  6. Step 6: Final answer
    x = 7,119.33

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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.