Home / 13,704.04-20,497.47-11,438.79

Finding the Fourth Proportional to 13,704.04, 20,497.47 and 11,438.79

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Solution

The fourth proportional to 13,704.04, 20,497.47 and 11,438.79 is: 17,109.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,704.04 : 20,497.47 = 11,438.79 : x
  2. Step 2: Convert to fraction form
    13,704.04/20,497.47 = 11,438.79/x
  3. Step 3: Cross multiply
    13,704.04x = 20,497.47 × 11,438.79
  4. Step 4: Simplify right side
    13,704.04x = 234,466,254.86
  5. Step 5: Solve for x
    x = 234,466,254.86/13,704.04
  6. Step 6: Final answer
    x = 17,109.28

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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.