Home / 9,261.18-12,786.39-8,264.75

Finding the Fourth Proportional to 9,261.18, 12,786.39 and 8,264.75

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Solution

The fourth proportional to 9,261.18, 12,786.39 and 8,264.75 is: 11,410.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,261.18 : 12,786.39 = 8,264.75 : x
  2. Step 2: Convert to fraction form
    9,261.18/12,786.39 = 8,264.75/x
  3. Step 3: Cross multiply
    9,261.18x = 12,786.39 × 8,264.75
  4. Step 4: Simplify right side
    9,261.18x = 105,676,252.82
  5. Step 5: Solve for x
    x = 105,676,252.82/9,261.18
  6. Step 6: Final answer
    x = 11,410.67

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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.