Home / 13,438.24-20,150.64-4,670.80

Finding the Fourth Proportional to 13,438.24, 20,150.64 and 4,670.80

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Solution

The fourth proportional to 13,438.24, 20,150.64 and 4,670.80 is: 7,003.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,438.24 : 20,150.64 = 4,670.80 : x
  2. Step 2: Convert to fraction form
    13,438.24/20,150.64 = 4,670.80/x
  3. Step 3: Cross multiply
    13,438.24x = 20,150.64 × 4,670.80
  4. Step 4: Simplify right side
    13,438.24x = 94,119,609.31
  5. Step 5: Solve for x
    x = 94,119,609.31/13,438.24
  6. Step 6: Final answer
    x = 7,003.86

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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.