Home / 13,945.08-19,240.46-8,275.12

Finding the Fourth Proportional to 13,945.08, 19,240.46 and 8,275.12

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Solution

The fourth proportional to 13,945.08, 19,240.46 and 8,275.12 is: 11,417.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,945.08 : 19,240.46 = 8,275.12 : x
  2. Step 2: Convert to fraction form
    13,945.08/19,240.46 = 8,275.12/x
  3. Step 3: Cross multiply
    13,945.08x = 19,240.46 × 8,275.12
  4. Step 4: Simplify right side
    13,945.08x = 159,217,115.36
  5. Step 5: Solve for x
    x = 159,217,115.36/13,945.08
  6. Step 6: Final answer
    x = 11,417.44

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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.