Home / 11,291.05-15,580.30-6,512.58

Finding the Fourth Proportional to 11,291.05, 15,580.30 and 6,512.58

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Solution

The fourth proportional to 11,291.05, 15,580.30 and 6,512.58 is: 8,986.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,291.05 : 15,580.30 = 6,512.58 : x
  2. Step 2: Convert to fraction form
    11,291.05/15,580.30 = 6,512.58/x
  3. Step 3: Cross multiply
    11,291.05x = 15,580.30 × 6,512.58
  4. Step 4: Simplify right side
    11,291.05x = 101,467,950.17
  5. Step 5: Solve for x
    x = 101,467,950.17/11,291.05
  6. Step 6: Final answer
    x = 8,986.58

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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.