Home / 13,614.49-20,403.56-7,276.38

Finding the Fourth Proportional to 13,614.49, 20,403.56 and 7,276.38

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Solution

The fourth proportional to 13,614.49, 20,403.56 and 7,276.38 is: 10,904.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,614.49 : 20,403.56 = 7,276.38 : x
  2. Step 2: Convert to fraction form
    13,614.49/20,403.56 = 7,276.38/x
  3. Step 3: Cross multiply
    13,614.49x = 20,403.56 × 7,276.38
  4. Step 4: Simplify right side
    13,614.49x = 148,464,055.91
  5. Step 5: Solve for x
    x = 148,464,055.91/13,614.49
  6. Step 6: Final answer
    x = 10,904.86

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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.