Home / 13,400.37-20,101.53-4,515.72

Finding the Fourth Proportional to 13,400.37, 20,101.53 and 4,515.72

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Solution

The fourth proportional to 13,400.37, 20,101.53 and 4,515.72 is: 6,773.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,400.37 : 20,101.53 = 4,515.72 : x
  2. Step 2: Convert to fraction form
    13,400.37/20,101.53 = 4,515.72/x
  3. Step 3: Cross multiply
    13,400.37x = 20,101.53 × 4,515.72
  4. Step 4: Simplify right side
    13,400.37x = 90,772,881.05
  5. Step 5: Solve for x
    x = 90,772,881.05/13,400.37
  6. Step 6: Final answer
    x = 6,773.91

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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.