Home / 11,225.31-16,788.75-7,838.19

Finding the Fourth Proportional to 11,225.31, 16,788.75 and 7,838.19

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Solution

The fourth proportional to 11,225.31, 16,788.75 and 7,838.19 is: 11,722.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,225.31 : 16,788.75 = 7,838.19 : x
  2. Step 2: Convert to fraction form
    11,225.31/16,788.75 = 7,838.19/x
  3. Step 3: Cross multiply
    11,225.31x = 16,788.75 × 7,838.19
  4. Step 4: Simplify right side
    11,225.31x = 131,593,412.36
  5. Step 5: Solve for x
    x = 131,593,412.36/11,225.31
  6. Step 6: Final answer
    x = 11,722.92

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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.