Home / 10,104.51-15,145.43-3,434.78

Finding the Fourth Proportional to 10,104.51, 15,145.43 and 3,434.78

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Solution

The fourth proportional to 10,104.51, 15,145.43 and 3,434.78 is: 5,148.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,104.51 : 15,145.43 = 3,434.78 : x
  2. Step 2: Convert to fraction form
    10,104.51/15,145.43 = 3,434.78/x
  3. Step 3: Cross multiply
    10,104.51x = 15,145.43 × 3,434.78
  4. Step 4: Simplify right side
    10,104.51x = 52,021,220.06
  5. Step 5: Solve for x
    x = 52,021,220.06/10,104.51
  6. Step 6: Final answer
    x = 5,148.32

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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.