Home / 11,358.50-15,622.70-9,115.46

Finding the Fourth Proportional to 11,358.50, 15,622.70 and 9,115.46

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Solution

The fourth proportional to 11,358.50, 15,622.70 and 9,115.46 is: 12,537.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,358.50 : 15,622.70 = 9,115.46 : x
  2. Step 2: Convert to fraction form
    11,358.50/15,622.70 = 9,115.46/x
  3. Step 3: Cross multiply
    11,358.50x = 15,622.70 × 9,115.46
  4. Step 4: Simplify right side
    11,358.50x = 142,408,101.41
  5. Step 5: Solve for x
    x = 142,408,101.41/11,358.50
  6. Step 6: Final answer
    x = 12,537.58

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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.