Home / 10,419.51-15,630.81-3,845.13

Finding the Fourth Proportional to 10,419.51, 15,630.81 and 3,845.13

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Solution

The fourth proportional to 10,419.51, 15,630.81 and 3,845.13 is: 5,768.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,419.51 : 15,630.81 = 3,845.13 : x
  2. Step 2: Convert to fraction form
    10,419.51/15,630.81 = 3,845.13/x
  3. Step 3: Cross multiply
    10,419.51x = 15,630.81 × 3,845.13
  4. Step 4: Simplify right side
    10,419.51x = 60,102,496.46
  5. Step 5: Solve for x
    x = 60,102,496.46/10,419.51
  6. Step 6: Final answer
    x = 5,768.27

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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.