Home / 8,710.38-12,020.31-4,731.57

Finding the Fourth Proportional to 8,710.38, 12,020.31 and 4,731.57

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Solution

The fourth proportional to 8,710.38, 12,020.31 and 4,731.57 is: 6,529.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,710.38 : 12,020.31 = 4,731.57 : x
  2. Step 2: Convert to fraction form
    8,710.38/12,020.31 = 4,731.57/x
  3. Step 3: Cross multiply
    8,710.38x = 12,020.31 × 4,731.57
  4. Step 4: Simplify right side
    8,710.38x = 56,874,938.19
  5. Step 5: Solve for x
    x = 56,874,938.19/8,710.38
  6. Step 6: Final answer
    x = 6,529.56

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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.