Home / 13,944.81-19,243.83-7,657.18

Finding the Fourth Proportional to 13,944.81, 19,243.83 and 7,657.18

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Solution

The fourth proportional to 13,944.81, 19,243.83 and 7,657.18 is: 10,566.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,944.81 : 19,243.83 = 7,657.18 : x
  2. Step 2: Convert to fraction form
    13,944.81/19,243.83 = 7,657.18/x
  3. Step 3: Cross multiply
    13,944.81x = 19,243.83 × 7,657.18
  4. Step 4: Simplify right side
    13,944.81x = 147,353,470.20
  5. Step 5: Solve for x
    x = 147,353,470.20/13,944.81
  6. Step 6: Final answer
    x = 10,566.91

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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.