Home / 11,105.21-15,325.40-6,069.65

Finding the Fourth Proportional to 11,105.21, 15,325.40 and 6,069.65

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Solution

The fourth proportional to 11,105.21, 15,325.40 and 6,069.65 is: 8,376.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,105.21 : 15,325.40 = 6,069.65 : x
  2. Step 2: Convert to fraction form
    11,105.21/15,325.40 = 6,069.65/x
  3. Step 3: Cross multiply
    11,105.21x = 15,325.40 × 6,069.65
  4. Step 4: Simplify right side
    11,105.21x = 93,019,707.13
  5. Step 5: Solve for x
    x = 93,019,707.13/11,105.21
  6. Step 6: Final answer
    x = 8,376.23

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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.