Home / 11,238.87-15,503.77-8,581.67

Finding the Fourth Proportional to 11,238.87, 15,503.77 and 8,581.67

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Solution

The fourth proportional to 11,238.87, 15,503.77 and 8,581.67 is: 11,838.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,238.87 : 15,503.77 = 8,581.67 : x
  2. Step 2: Convert to fraction form
    11,238.87/15,503.77 = 8,581.67/x
  3. Step 3: Cross multiply
    11,238.87x = 15,503.77 × 8,581.67
  4. Step 4: Simplify right side
    11,238.87x = 133,048,237.90
  5. Step 5: Solve for x
    x = 133,048,237.90/11,238.87
  6. Step 6: Final answer
    x = 11,838.22

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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.