Home / 8,681.31-13,007.97-4,515.08

Finding the Fourth Proportional to 8,681.31, 13,007.97 and 4,515.08

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Solution

The fourth proportional to 8,681.31, 13,007.97 and 4,515.08 is: 6,765.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,681.31 : 13,007.97 = 4,515.08 : x
  2. Step 2: Convert to fraction form
    8,681.31/13,007.97 = 4,515.08/x
  3. Step 3: Cross multiply
    8,681.31x = 13,007.97 × 4,515.08
  4. Step 4: Simplify right side
    8,681.31x = 58,731,960.15
  5. Step 5: Solve for x
    x = 58,731,960.15/8,681.31
  6. Step 6: Final answer
    x = 6,765.33

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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.