Home / 11,837.24-17,718.90-8,720.76

Finding the Fourth Proportional to 11,837.24, 17,718.90 and 8,720.76

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Solution

The fourth proportional to 11,837.24, 17,718.90 and 8,720.76 is: 13,053.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,837.24 : 17,718.90 = 8,720.76 : x
  2. Step 2: Convert to fraction form
    11,837.24/17,718.90 = 8,720.76/x
  3. Step 3: Cross multiply
    11,837.24x = 17,718.90 × 8,720.76
  4. Step 4: Simplify right side
    11,837.24x = 154,522,274.36
  5. Step 5: Solve for x
    x = 154,522,274.36/11,837.24
  6. Step 6: Final answer
    x = 13,053.91

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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.