Home / 8,820.36-12,172.41-4,841.78

Finding the Fourth Proportional to 8,820.36, 12,172.41 and 4,841.78

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Solution

The fourth proportional to 8,820.36, 12,172.41 and 4,841.78 is: 6,681.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,820.36 : 12,172.41 = 4,841.78 : x
  2. Step 2: Convert to fraction form
    8,820.36/12,172.41 = 4,841.78/x
  3. Step 3: Cross multiply
    8,820.36x = 12,172.41 × 4,841.78
  4. Step 4: Simplify right side
    8,820.36x = 58,936,070.43
  5. Step 5: Solve for x
    x = 58,936,070.43/8,820.36
  6. Step 6: Final answer
    x = 6,681.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.