Home / 19,157.45-28,726.20-8,618.36

Finding the Fourth Proportional to 19,157.45, 28,726.20 and 8,618.36

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Solution

The fourth proportional to 19,157.45, 28,726.20 and 8,618.36 is: 12,923.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,157.45 : 28,726.20 = 8,618.36 : x
  2. Step 2: Convert to fraction form
    19,157.45/28,726.20 = 8,618.36/x
  3. Step 3: Cross multiply
    19,157.45x = 28,726.20 × 8,618.36
  4. Step 4: Simplify right side
    19,157.45x = 247,572,589.40
  5. Step 5: Solve for x
    x = 247,572,589.40/19,157.45
  6. Step 6: Final answer
    x = 12,923.05

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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.