Home / 10,436.20-14,401.96-5,720.48

Finding the Fourth Proportional to 10,436.20, 14,401.96 and 5,720.48

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Solution

The fourth proportional to 10,436.20, 14,401.96 and 5,720.48 is: 7,894.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,436.20 : 14,401.96 = 5,720.48 : x
  2. Step 2: Convert to fraction form
    10,436.20/14,401.96 = 5,720.48/x
  3. Step 3: Cross multiply
    10,436.20x = 14,401.96 × 5,720.48
  4. Step 4: Simplify right side
    10,436.20x = 82,386,124.14
  5. Step 5: Solve for x
    x = 82,386,124.14/10,436.20
  6. Step 6: Final answer
    x = 7,894.26

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.