Home / 11,885.90-17,823.25-4,387.57

Finding the Fourth Proportional to 11,885.90, 17,823.25 and 4,387.57

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Solution

The fourth proportional to 11,885.90, 17,823.25 and 4,387.57 is: 6,579.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,885.90 : 17,823.25 = 4,387.57 : x
  2. Step 2: Convert to fraction form
    11,885.90/17,823.25 = 4,387.57/x
  3. Step 3: Cross multiply
    11,885.90x = 17,823.25 × 4,387.57
  4. Step 4: Simplify right side
    11,885.90x = 78,200,701.48
  5. Step 5: Solve for x
    x = 78,200,701.48/11,885.90
  6. Step 6: Final answer
    x = 6,579.28

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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.