Home / 13,246.14-18,285.75-7,868.22

Finding the Fourth Proportional to 13,246.14, 18,285.75 and 7,868.22

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Solution

The fourth proportional to 13,246.14, 18,285.75 and 7,868.22 is: 10,861.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,246.14 : 18,285.75 = 7,868.22 : x
  2. Step 2: Convert to fraction form
    13,246.14/18,285.75 = 7,868.22/x
  3. Step 3: Cross multiply
    13,246.14x = 18,285.75 × 7,868.22
  4. Step 4: Simplify right side
    13,246.14x = 143,876,303.87
  5. Step 5: Solve for x
    x = 143,876,303.87/13,246.14
  6. Step 6: Final answer
    x = 10,861.75

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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.