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Finding the Fourth Proportional to 8,671.36, 13,006.98 and 4,509.22

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Solution

The fourth proportional to 8,671.36, 13,006.98 and 4,509.22 is: 6,763.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,671.36 : 13,006.98 = 4,509.22 : x
  2. Step 2: Convert to fraction form
    8,671.36/13,006.98 = 4,509.22/x
  3. Step 3: Cross multiply
    8,671.36x = 13,006.98 × 4,509.22
  4. Step 4: Simplify right side
    8,671.36x = 58,651,334.36
  5. Step 5: Solve for x
    x = 58,651,334.36/8,671.36
  6. Step 6: Final answer
    x = 6,763.80

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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.