Home / 11,390.51-17,088.28-3,494.12

Finding the Fourth Proportional to 11,390.51, 17,088.28 and 3,494.12

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Solution

The fourth proportional to 11,390.51, 17,088.28 and 3,494.12 is: 5,241.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,390.51 : 17,088.28 = 3,494.12 : x
  2. Step 2: Convert to fraction form
    11,390.51/17,088.28 = 3,494.12/x
  3. Step 3: Cross multiply
    11,390.51x = 17,088.28 × 3,494.12
  4. Step 4: Simplify right side
    11,390.51x = 59,708,406.74
  5. Step 5: Solve for x
    x = 59,708,406.74/11,390.51
  6. Step 6: Final answer
    x = 5,241.94

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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.