Home / 11,419.65-17,127.45-3,100.32

Finding the Fourth Proportional to 11,419.65, 17,127.45 and 3,100.32

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Solution

The fourth proportional to 11,419.65, 17,127.45 and 3,100.32 is: 4,649.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,419.65 : 17,127.45 = 3,100.32 : x
  2. Step 2: Convert to fraction form
    11,419.65/17,127.45 = 3,100.32/x
  3. Step 3: Cross multiply
    11,419.65x = 17,127.45 × 3,100.32
  4. Step 4: Simplify right side
    11,419.65x = 53,100,575.78
  5. Step 5: Solve for x
    x = 53,100,575.78/11,419.65
  6. Step 6: Final answer
    x = 4,649.93

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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.