Home / 11,109.87-16,653.20-5,259.51

Finding the Fourth Proportional to 11,109.87, 16,653.20 and 5,259.51

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Solution

The fourth proportional to 11,109.87, 16,653.20 and 5,259.51 is: 7,883.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,109.87 : 16,653.20 = 5,259.51 : x
  2. Step 2: Convert to fraction form
    11,109.87/16,653.20 = 5,259.51/x
  3. Step 3: Cross multiply
    11,109.87x = 16,653.20 × 5,259.51
  4. Step 4: Simplify right side
    11,109.87x = 87,587,645.63
  5. Step 5: Solve for x
    x = 87,587,645.63/11,109.87
  6. Step 6: Final answer
    x = 7,883.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.