Home / 8,117.42-12,172.48-3,736.13

Finding the Fourth Proportional to 8,117.42, 12,172.48 and 3,736.13

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Solution

The fourth proportional to 8,117.42, 12,172.48 and 3,736.13 is: 5,602.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,117.42 : 12,172.48 = 3,736.13 : x
  2. Step 2: Convert to fraction form
    8,117.42/12,172.48 = 3,736.13/x
  3. Step 3: Cross multiply
    8,117.42x = 12,172.48 × 3,736.13
  4. Step 4: Simplify right side
    8,117.42x = 45,477,897.50
  5. Step 5: Solve for x
    x = 45,477,897.50/8,117.42
  6. Step 6: Final answer
    x = 5,602.51

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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.