Home / 13,939.08-19,232.19-8,269.11

Finding the Fourth Proportional to 13,939.08, 19,232.19 and 8,269.11

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Solution

The fourth proportional to 13,939.08, 19,232.19 and 8,269.11 is: 11,409.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,939.08 : 19,232.19 = 8,269.11 : x
  2. Step 2: Convert to fraction form
    13,939.08/19,232.19 = 8,269.11/x
  3. Step 3: Cross multiply
    13,939.08x = 19,232.19 × 8,269.11
  4. Step 4: Simplify right side
    13,939.08x = 159,033,094.65
  5. Step 5: Solve for x
    x = 159,033,094.65/13,939.08
  6. Step 6: Final answer
    x = 11,409.15

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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.