Home / 13,485.72-20,225.33-6,908.52

Finding the Fourth Proportional to 13,485.72, 20,225.33 and 6,908.52

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Solution

The fourth proportional to 13,485.72, 20,225.33 and 6,908.52 is: 10,361.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,485.72 : 20,225.33 = 6,908.52 : x
  2. Step 2: Convert to fraction form
    13,485.72/20,225.33 = 6,908.52/x
  3. Step 3: Cross multiply
    13,485.72x = 20,225.33 × 6,908.52
  4. Step 4: Simplify right side
    13,485.72x = 139,727,096.81
  5. Step 5: Solve for x
    x = 139,727,096.81/13,485.72
  6. Step 6: Final answer
    x = 10,361.12

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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.