Home / 11,812.34-17,718.56-8,103.33

Finding the Fourth Proportional to 11,812.34, 17,718.56 and 8,103.33

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Solution

The fourth proportional to 11,812.34, 17,718.56 and 8,103.33 is: 12,155.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,812.34 : 17,718.56 = 8,103.33 : x
  2. Step 2: Convert to fraction form
    11,812.34/17,718.56 = 8,103.33/x
  3. Step 3: Cross multiply
    11,812.34x = 17,718.56 × 8,103.33
  4. Step 4: Simplify right side
    11,812.34x = 143,579,298.29
  5. Step 5: Solve for x
    x = 143,579,298.29/11,812.34
  6. Step 6: Final answer
    x = 12,155.03

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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.