Home / 6,665.80-10,020.30-4,731.40

Finding the Fourth Proportional to 6,665.80, 10,020.30 and 4,731.40

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Solution

The fourth proportional to 6,665.80, 10,020.30 and 4,731.40 is: 7,112.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,665.80 : 10,020.30 = 4,731.40 : x
  2. Step 2: Convert to fraction form
    6,665.80/10,020.30 = 4,731.40/x
  3. Step 3: Cross multiply
    6,665.80x = 10,020.30 × 4,731.40
  4. Step 4: Simplify right side
    6,665.80x = 47,410,047.42
  5. Step 5: Solve for x
    x = 47,410,047.42/6,665.80
  6. Step 6: Final answer
    x = 7,112.43

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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.