Home / 13,931.37-20,902.53-6,134.72

Finding the Fourth Proportional to 13,931.37, 20,902.53 and 6,134.72

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Solution

The fourth proportional to 13,931.37, 20,902.53 and 6,134.72 is: 9,204.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,931.37 : 20,902.53 = 6,134.72 : x
  2. Step 2: Convert to fraction form
    13,931.37/20,902.53 = 6,134.72/x
  3. Step 3: Cross multiply
    13,931.37x = 20,902.53 × 6,134.72
  4. Step 4: Simplify right side
    13,931.37x = 128,231,064.33
  5. Step 5: Solve for x
    x = 128,231,064.33/13,931.37
  6. Step 6: Final answer
    x = 9,204.48

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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.