Home / 11,883.36-16,398.48-7,166.56

Finding the Fourth Proportional to 11,883.36, 16,398.48 and 7,166.56

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Solution

The fourth proportional to 11,883.36, 16,398.48 and 7,166.56 is: 9,889.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,883.36 : 16,398.48 = 7,166.56 : x
  2. Step 2: Convert to fraction form
    11,883.36/16,398.48 = 7,166.56/x
  3. Step 3: Cross multiply
    11,883.36x = 16,398.48 × 7,166.56
  4. Step 4: Simplify right side
    11,883.36x = 117,520,690.83
  5. Step 5: Solve for x
    x = 117,520,690.83/11,883.36
  6. Step 6: Final answer
    x = 9,889.52

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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.