Home / 10,015.85-15,022.63-2,621.02

Finding the Fourth Proportional to 10,015.85, 15,022.63 and 2,621.02

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Solution

The fourth proportional to 10,015.85, 15,022.63 and 2,621.02 is: 3,931.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,015.85 : 15,022.63 = 2,621.02 : x
  2. Step 2: Convert to fraction form
    10,015.85/15,022.63 = 2,621.02/x
  3. Step 3: Cross multiply
    10,015.85x = 15,022.63 × 2,621.02
  4. Step 4: Simplify right side
    10,015.85x = 39,374,613.68
  5. Step 5: Solve for x
    x = 39,374,613.68/10,015.85
  6. Step 6: Final answer
    x = 3,931.23

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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.