Home / 8,172.34-11,277.18-4,636.12

Finding the Fourth Proportional to 8,172.34, 11,277.18 and 4,636.12

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Solution

The fourth proportional to 8,172.34, 11,277.18 and 4,636.12 is: 6,397.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.34 : 11,277.18 = 4,636.12 : x
  2. Step 2: Convert to fraction form
    8,172.34/11,277.18 = 4,636.12/x
  3. Step 3: Cross multiply
    8,172.34x = 11,277.18 × 4,636.12
  4. Step 4: Simplify right side
    8,172.34x = 52,282,359.74
  5. Step 5: Solve for x
    x = 52,282,359.74/8,172.34
  6. Step 6: Final answer
    x = 6,397.48

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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.