Home / 11,681.90-17,511.72-3,885.26

Finding the Fourth Proportional to 11,681.90, 17,511.72 and 3,885.26

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Solution

The fourth proportional to 11,681.90, 17,511.72 and 3,885.26 is: 5,824.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,681.90 : 17,511.72 = 3,885.26 : x
  2. Step 2: Convert to fraction form
    11,681.90/17,511.72 = 3,885.26/x
  3. Step 3: Cross multiply
    11,681.90x = 17,511.72 × 3,885.26
  4. Step 4: Simplify right side
    11,681.90x = 68,037,585.25
  5. Step 5: Solve for x
    x = 68,037,585.25/11,681.90
  6. Step 6: Final answer
    x = 5,824.19

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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.