Home / 11,166.64-15,421.44-9,667.36

Finding the Fourth Proportional to 11,166.64, 15,421.44 and 9,667.36

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Solution

The fourth proportional to 11,166.64, 15,421.44 and 9,667.36 is: 13,350.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,166.64 : 15,421.44 = 9,667.36 : x
  2. Step 2: Convert to fraction form
    11,166.64/15,421.44 = 9,667.36/x
  3. Step 3: Cross multiply
    11,166.64x = 15,421.44 × 9,667.36
  4. Step 4: Simplify right side
    11,166.64x = 149,084,612.20
  5. Step 5: Solve for x
    x = 149,084,612.20/11,166.64
  6. Step 6: Final answer
    x = 13,350.89

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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.