Home / 13,641.33-20,461.83-3,780.24

Finding the Fourth Proportional to 13,641.33, 20,461.83 and 3,780.24

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Solution

The fourth proportional to 13,641.33, 20,461.83 and 3,780.24 is: 5,670.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,641.33 : 20,461.83 = 3,780.24 : x
  2. Step 2: Convert to fraction form
    13,641.33/20,461.83 = 3,780.24/x
  3. Step 3: Cross multiply
    13,641.33x = 20,461.83 × 3,780.24
  4. Step 4: Simplify right side
    13,641.33x = 77,350,628.24
  5. Step 5: Solve for x
    x = 77,350,628.24/13,641.33
  6. Step 6: Final answer
    x = 5,670.31

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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.