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Finding the Fourth Proportional to 8,570.88, 12,856.39 and 3,022.99

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Solution

The fourth proportional to 8,570.88, 12,856.39 and 3,022.99 is: 4,534.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,570.88 : 12,856.39 = 3,022.99 : x
  2. Step 2: Convert to fraction form
    8,570.88/12,856.39 = 3,022.99/x
  3. Step 3: Cross multiply
    8,570.88x = 12,856.39 × 3,022.99
  4. Step 4: Simplify right side
    8,570.88x = 38,864,698.71
  5. Step 5: Solve for x
    x = 38,864,698.71/8,570.88
  6. Step 6: Final answer
    x = 4,534.51

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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.