Home / 7,127.72-10,670.80-4,758.44

Finding the Fourth Proportional to 7,127.72, 10,670.80 and 4,758.44

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Solution

The fourth proportional to 7,127.72, 10,670.80 and 4,758.44 is: 7,123.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.72 : 10,670.80 = 4,758.44 : x
  2. Step 2: Convert to fraction form
    7,127.72/10,670.80 = 4,758.44/x
  3. Step 3: Cross multiply
    7,127.72x = 10,670.80 × 4,758.44
  4. Step 4: Simplify right side
    7,127.72x = 50,776,361.55
  5. Step 5: Solve for x
    x = 50,776,361.55/7,127.72
  6. Step 6: Final answer
    x = 7,123.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.