Home / 11,325.28-15,628.36-6,289.82

Finding the Fourth Proportional to 11,325.28, 15,628.36 and 6,289.82

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Solution

The fourth proportional to 11,325.28, 15,628.36 and 6,289.82 is: 8,679.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,325.28 : 15,628.36 = 6,289.82 : x
  2. Step 2: Convert to fraction form
    11,325.28/15,628.36 = 6,289.82/x
  3. Step 3: Cross multiply
    11,325.28x = 15,628.36 × 6,289.82
  4. Step 4: Simplify right side
    11,325.28x = 98,299,571.30
  5. Step 5: Solve for x
    x = 98,299,571.30/11,325.28
  6. Step 6: Final answer
    x = 8,679.66

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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.