Home / 13,928.91-19,216.90-8,259.27

Finding the Fourth Proportional to 13,928.91, 19,216.90 and 8,259.27

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Solution

The fourth proportional to 13,928.91, 19,216.90 and 8,259.27 is: 11,394.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,928.91 : 19,216.90 = 8,259.27 : x
  2. Step 2: Convert to fraction form
    13,928.91/19,216.90 = 8,259.27/x
  3. Step 3: Cross multiply
    13,928.91x = 19,216.90 × 8,259.27
  4. Step 4: Simplify right side
    13,928.91x = 158,717,457.47
  5. Step 5: Solve for x
    x = 158,717,457.47/13,928.91
  6. Step 6: Final answer
    x = 11,394.82

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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.