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Finding the Fourth Proportional to 8,698.86, 13,048.29 and 3,151.17

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Solution

The fourth proportional to 8,698.86, 13,048.29 and 3,151.17 is: 4,726.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,698.86 : 13,048.29 = 3,151.17 : x
  2. Step 2: Convert to fraction form
    8,698.86/13,048.29 = 3,151.17/x
  3. Step 3: Cross multiply
    8,698.86x = 13,048.29 × 3,151.17
  4. Step 4: Simplify right side
    8,698.86x = 41,117,380.00
  5. Step 5: Solve for x
    x = 41,117,380.00/8,698.86
  6. Step 6: Final answer
    x = 4,726.76

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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.