Home / 13,933.37-20,905.53-6,136.72

Finding the Fourth Proportional to 13,933.37, 20,905.53 and 6,136.72

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Solution

The fourth proportional to 13,933.37, 20,905.53 and 6,136.72 is: 9,207.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,933.37 : 20,905.53 = 6,136.72 : x
  2. Step 2: Convert to fraction form
    13,933.37/20,905.53 = 6,136.72/x
  3. Step 3: Cross multiply
    13,933.37x = 20,905.53 × 6,136.72
  4. Step 4: Simplify right side
    13,933.37x = 128,291,384.06
  5. Step 5: Solve for x
    x = 128,291,384.06/13,933.37
  6. Step 6: Final answer
    x = 9,207.49

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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.