Home / 19,117.20-28,659.44-7,264.36

Finding the Fourth Proportional to 19,117.20, 28,659.44 and 7,264.36

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Solution

The fourth proportional to 19,117.20, 28,659.44 and 7,264.36 is: 10,890.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,117.20 : 28,659.44 = 7,264.36 : x
  2. Step 2: Convert to fraction form
    19,117.20/28,659.44 = 7,264.36/x
  3. Step 3: Cross multiply
    19,117.20x = 28,659.44 × 7,264.36
  4. Step 4: Simplify right side
    19,117.20x = 208,192,489.56
  5. Step 5: Solve for x
    x = 208,192,489.56/19,117.20
  6. Step 6: Final answer
    x = 10,890.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.