Home / 6,599.38-9,886.64-5,131.40

Finding the Fourth Proportional to 6,599.38, 9,886.64 and 5,131.40

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Solution

The fourth proportional to 6,599.38, 9,886.64 and 5,131.40 is: 7,687.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,599.38 : 9,886.64 = 5,131.40 : x
  2. Step 2: Convert to fraction form
    6,599.38/9,886.64 = 5,131.40/x
  3. Step 3: Cross multiply
    6,599.38x = 9,886.64 × 5,131.40
  4. Step 4: Simplify right side
    6,599.38x = 50,732,304.50
  5. Step 5: Solve for x
    x = 50,732,304.50/6,599.38
  6. Step 6: Final answer
    x = 7,687.43

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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.