Home / 9,107.28-13,666.68-5,219.28

Finding the Fourth Proportional to 9,107.28, 13,666.68 and 5,219.28

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Solution

The fourth proportional to 9,107.28, 13,666.68 and 5,219.28 is: 7,832.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,107.28 : 13,666.68 = 5,219.28 : x
  2. Step 2: Convert to fraction form
    9,107.28/13,666.68 = 5,219.28/x
  3. Step 3: Cross multiply
    9,107.28x = 13,666.68 × 5,219.28
  4. Step 4: Simplify right side
    9,107.28x = 71,330,229.59
  5. Step 5: Solve for x
    x = 71,330,229.59/9,107.28
  6. Step 6: Final answer
    x = 7,832.22

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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.