Home / 13,418.55-20,133.52-7,176.94

Finding the Fourth Proportional to 13,418.55, 20,133.52 and 7,176.94

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Solution

The fourth proportional to 13,418.55, 20,133.52 and 7,176.94 is: 10,768.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,418.55 : 20,133.52 = 7,176.94 : x
  2. Step 2: Convert to fraction form
    13,418.55/20,133.52 = 7,176.94/x
  3. Step 3: Cross multiply
    13,418.55x = 20,133.52 × 7,176.94
  4. Step 4: Simplify right side
    13,418.55x = 144,496,996.75
  5. Step 5: Solve for x
    x = 144,496,996.75/13,418.55
  6. Step 6: Final answer
    x = 10,768.45

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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.