Home / 18,343.28-27,509.16-7,813.19

Finding the Fourth Proportional to 18,343.28, 27,509.16 and 7,813.19

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Solution

The fourth proportional to 18,343.28, 27,509.16 and 7,813.19 is: 11,717.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,343.28 : 27,509.16 = 7,813.19 : x
  2. Step 2: Convert to fraction form
    18,343.28/27,509.16 = 7,813.19/x
  3. Step 3: Cross multiply
    18,343.28x = 27,509.16 × 7,813.19
  4. Step 4: Simplify right side
    18,343.28x = 214,934,293.82
  5. Step 5: Solve for x
    x = 214,934,293.82/18,343.28
  6. Step 6: Final answer
    x = 11,717.33

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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.