Home / 13,637.30-20,455.96-3,776.36

Finding the Fourth Proportional to 13,637.30, 20,455.96 and 3,776.36

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Solution

The fourth proportional to 13,637.30, 20,455.96 and 3,776.36 is: 5,664.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,637.30 : 20,455.96 = 3,776.36 : x
  2. Step 2: Convert to fraction form
    13,637.30/20,455.96 = 3,776.36/x
  3. Step 3: Cross multiply
    13,637.30x = 20,455.96 × 3,776.36
  4. Step 4: Simplify right side
    13,637.30x = 77,249,110.80
  5. Step 5: Solve for x
    x = 77,249,110.80/13,637.30
  6. Step 6: Final answer
    x = 5,664.54

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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.