Home / 8,172.80-11,278.13-4,635.93

Finding the Fourth Proportional to 8,172.80, 11,278.13 and 4,635.93

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Solution

The fourth proportional to 8,172.80, 11,278.13 and 4,635.93 is: 6,397.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.80 : 11,278.13 = 4,635.93 : x
  2. Step 2: Convert to fraction form
    8,172.80/11,278.13 = 4,635.93/x
  3. Step 3: Cross multiply
    8,172.80x = 11,278.13 × 4,635.93
  4. Step 4: Simplify right side
    8,172.80x = 52,284,598.03
  5. Step 5: Solve for x
    x = 52,284,598.03/8,172.80
  6. Step 6: Final answer
    x = 6,397.40

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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.