Home / 11,107.68-15,302.58-7,744.38

Finding the Fourth Proportional to 11,107.68, 15,302.58 and 7,744.38

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Solution

The fourth proportional to 11,107.68, 15,302.58 and 7,744.38 is: 10,669.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,107.68 : 15,302.58 = 7,744.38 : x
  2. Step 2: Convert to fraction form
    11,107.68/15,302.58 = 7,744.38/x
  3. Step 3: Cross multiply
    11,107.68x = 15,302.58 × 7,744.38
  4. Step 4: Simplify right side
    11,107.68x = 118,508,994.50
  5. Step 5: Solve for x
    x = 118,508,994.50/11,107.68
  6. Step 6: Final answer
    x = 10,669.10

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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.