Home / 13,944.20-19,243.20-7,656.57

Finding the Fourth Proportional to 13,944.20, 19,243.20 and 7,656.57

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Solution

The fourth proportional to 13,944.20, 19,243.20 and 7,656.57 is: 10,566.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,944.20 : 19,243.20 = 7,656.57 : x
  2. Step 2: Convert to fraction form
    13,944.20/19,243.20 = 7,656.57/x
  3. Step 3: Cross multiply
    13,944.20x = 19,243.20 × 7,656.57
  4. Step 4: Simplify right side
    13,944.20x = 147,336,907.82
  5. Step 5: Solve for x
    x = 147,336,907.82/13,944.20
  6. Step 6: Final answer
    x = 10,566.18

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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.