Home / 8,172.07-11,278.01-4,635.51

Finding the Fourth Proportional to 8,172.07, 11,278.01 and 4,635.51

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Solution

The fourth proportional to 8,172.07, 11,278.01 and 4,635.51 is: 6,397.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.07 : 11,278.01 = 4,635.51 : x
  2. Step 2: Convert to fraction form
    8,172.07/11,278.01 = 4,635.51/x
  3. Step 3: Cross multiply
    8,172.07x = 11,278.01 × 4,635.51
  4. Step 4: Simplify right side
    8,172.07x = 52,279,304.96
  5. Step 5: Solve for x
    x = 52,279,304.96/8,172.07
  6. Step 6: Final answer
    x = 6,397.32

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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.