Home / 11,313.18-15,630.97-8,941.34

Finding the Fourth Proportional to 11,313.18, 15,630.97 and 8,941.34

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Solution

The fourth proportional to 11,313.18, 15,630.97 and 8,941.34 is: 12,353.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,313.18 : 15,630.97 = 8,941.34 : x
  2. Step 2: Convert to fraction form
    11,313.18/15,630.97 = 8,941.34/x
  3. Step 3: Cross multiply
    11,313.18x = 15,630.97 × 8,941.34
  4. Step 4: Simplify right side
    11,313.18x = 139,761,817.30
  5. Step 5: Solve for x
    x = 139,761,817.30/11,313.18
  6. Step 6: Final answer
    x = 12,353.89

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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.