Home / 8,172.77-11,278.54-4,635.98

Finding the Fourth Proportional to 8,172.77, 11,278.54 and 4,635.98

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Solution

The fourth proportional to 8,172.77, 11,278.54 and 4,635.98 is: 6,397.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.77 : 11,278.54 = 4,635.98 : x
  2. Step 2: Convert to fraction form
    8,172.77/11,278.54 = 4,635.98/x
  3. Step 3: Cross multiply
    8,172.77x = 11,278.54 × 4,635.98
  4. Step 4: Simplify right side
    8,172.77x = 52,287,141.01
  5. Step 5: Solve for x
    x = 52,287,141.01/8,172.77
  6. Step 6: Final answer
    x = 6,397.72

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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.