Home / 11,811.48-17,705.06-5,240.76

Finding the Fourth Proportional to 11,811.48, 17,705.06 and 5,240.76

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Solution

The fourth proportional to 11,811.48, 17,705.06 and 5,240.76 is: 7,855.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,811.48 : 17,705.06 = 5,240.76 : x
  2. Step 2: Convert to fraction form
    11,811.48/17,705.06 = 5,240.76/x
  3. Step 3: Cross multiply
    11,811.48x = 17,705.06 × 5,240.76
  4. Step 4: Simplify right side
    11,811.48x = 92,787,970.25
  5. Step 5: Solve for x
    x = 92,787,970.25/11,811.48
  6. Step 6: Final answer
    x = 7,855.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.