Home / 13,538.44-18,683.76-8,232.40

Finding the Fourth Proportional to 13,538.44, 18,683.76 and 8,232.40

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Solution

The fourth proportional to 13,538.44, 18,683.76 and 8,232.40 is: 11,361.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,538.44 : 18,683.76 = 8,232.40 : x
  2. Step 2: Convert to fraction form
    13,538.44/18,683.76 = 8,232.40/x
  3. Step 3: Cross multiply
    13,538.44x = 18,683.76 × 8,232.40
  4. Step 4: Simplify right side
    13,538.44x = 153,812,185.82
  5. Step 5: Solve for x
    x = 153,812,185.82/13,538.44
  6. Step 6: Final answer
    x = 11,361.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.