Home / 12,933.12-17,847.60-7,344

Finding the Fourth Proportional to 12,933.12, 17,847.60 and 7,344

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Solution

The fourth proportional to 12,933.12, 17,847.60 and 7,344 is: 10,134.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,933.12 : 17,847.60 = 7,344 : x
  2. Step 2: Convert to fraction form
    12,933.12/17,847.60 = 7,344/x
  3. Step 3: Cross multiply
    12,933.12x = 17,847.60 × 7,344
  4. Step 4: Simplify right side
    12,933.12x = 131,072,774.40
  5. Step 5: Solve for x
    x = 131,072,774.40/12,933.12
  6. Step 6: Final answer
    x = 10,134.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.