Home / 8,261.48-11,401.28-5,274.92

Finding the Fourth Proportional to 8,261.48, 11,401.28 and 5,274.92

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Solution

The fourth proportional to 8,261.48, 11,401.28 and 5,274.92 is: 7,279.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,261.48 : 11,401.28 = 5,274.92 : x
  2. Step 2: Convert to fraction form
    8,261.48/11,401.28 = 5,274.92/x
  3. Step 3: Cross multiply
    8,261.48x = 11,401.28 × 5,274.92
  4. Step 4: Simplify right side
    8,261.48x = 60,140,839.90
  5. Step 5: Solve for x
    x = 60,140,839.90/8,261.48
  6. Step 6: Final answer
    x = 7,279.67

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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.