Home / 13,637.53-20,456.30-3,776.81

Finding the Fourth Proportional to 13,637.53, 20,456.30 and 3,776.81

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Solution

The fourth proportional to 13,637.53, 20,456.30 and 3,776.81 is: 5,665.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,637.53 : 20,456.30 = 3,776.81 : x
  2. Step 2: Convert to fraction form
    13,637.53/20,456.30 = 3,776.81/x
  3. Step 3: Cross multiply
    13,637.53x = 20,456.30 × 3,776.81
  4. Step 4: Simplify right side
    13,637.53x = 77,259,548.96
  5. Step 5: Solve for x
    x = 77,259,548.96/13,637.53
  6. Step 6: Final answer
    x = 5,665.22

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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.