Home / 11,588.78-15,986.49-6,874.58

Finding the Fourth Proportional to 11,588.78, 15,986.49 and 6,874.58

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Solution

The fourth proportional to 11,588.78, 15,986.49 and 6,874.58 is: 9,483.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,588.78 : 15,986.49 = 6,874.58 : x
  2. Step 2: Convert to fraction form
    11,588.78/15,986.49 = 6,874.58/x
  3. Step 3: Cross multiply
    11,588.78x = 15,986.49 × 6,874.58
  4. Step 4: Simplify right side
    11,588.78x = 109,900,404.42
  5. Step 5: Solve for x
    x = 109,900,404.42/11,588.78
  6. Step 6: Final answer
    x = 9,483.35

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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.