Home / 10,646.43-15,969.42-3,720.75

Finding the Fourth Proportional to 10,646.43, 15,969.42 and 3,720.75

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Solution

The fourth proportional to 10,646.43, 15,969.42 and 3,720.75 is: 5,581.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,646.43 : 15,969.42 = 3,720.75 : x
  2. Step 2: Convert to fraction form
    10,646.43/15,969.42 = 3,720.75/x
  3. Step 3: Cross multiply
    10,646.43x = 15,969.42 × 3,720.75
  4. Step 4: Simplify right side
    10,646.43x = 59,418,219.47
  5. Step 5: Solve for x
    x = 59,418,219.47/10,646.43
  6. Step 6: Final answer
    x = 5,581.05

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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.