Home / 12,637.44-18,957.38-3,870.81

Finding the Fourth Proportional to 12,637.44, 18,957.38 and 3,870.81

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Solution

The fourth proportional to 12,637.44, 18,957.38 and 3,870.81 is: 5,806.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,637.44 : 18,957.38 = 3,870.81 : x
  2. Step 2: Convert to fraction form
    12,637.44/18,957.38 = 3,870.81/x
  3. Step 3: Cross multiply
    12,637.44x = 18,957.38 × 3,870.81
  4. Step 4: Simplify right side
    12,637.44x = 73,380,396.72
  5. Step 5: Solve for x
    x = 73,380,396.72/12,637.44
  6. Step 6: Final answer
    x = 5,806.59

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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.