Home / 13,403.49-20,113.79-9,452.31

Finding the Fourth Proportional to 13,403.49, 20,113.79 and 9,452.31

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Solution

The fourth proportional to 13,403.49, 20,113.79 and 9,452.31 is: 14,184.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,403.49 : 20,113.79 = 9,452.31 : x
  2. Step 2: Convert to fraction form
    13,403.49/20,113.79 = 9,452.31/x
  3. Step 3: Cross multiply
    13,403.49x = 20,113.79 × 9,452.31
  4. Step 4: Simplify right side
    13,403.49x = 190,121,731.09
  5. Step 5: Solve for x
    x = 190,121,731.09/13,403.49
  6. Step 6: Final answer
    x = 14,184.49

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1.5x scale

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.