Home / 8,173.05-11,278.47-4,636.18

Finding the Fourth Proportional to 8,173.05, 11,278.47 and 4,636.18

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Solution

The fourth proportional to 8,173.05, 11,278.47 and 4,636.18 is: 6,397.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,173.05 : 11,278.47 = 4,636.18 : x
  2. Step 2: Convert to fraction form
    8,173.05/11,278.47 = 4,636.18/x
  3. Step 3: Cross multiply
    8,173.05x = 11,278.47 × 4,636.18
  4. Step 4: Simplify right side
    8,173.05x = 52,289,017.04
  5. Step 5: Solve for x
    x = 52,289,017.04/8,173.05
  6. Step 6: Final answer
    x = 6,397.74

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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.