Home / 10,301.36-15,415.14-8,919.46

Finding the Fourth Proportional to 10,301.36, 15,415.14 and 8,919.46

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Solution

The fourth proportional to 10,301.36, 15,415.14 and 8,919.46 is: 13,347.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,301.36 : 15,415.14 = 8,919.46 : x
  2. Step 2: Convert to fraction form
    10,301.36/15,415.14 = 8,919.46/x
  3. Step 3: Cross multiply
    10,301.36x = 15,415.14 × 8,919.46
  4. Step 4: Simplify right side
    10,301.36x = 137,494,724.62
  5. Step 5: Solve for x
    x = 137,494,724.62/10,301.36
  6. Step 6: Final answer
    x = 13,347.24

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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.