Home / 11,131.84-15,362.67-6,416.43

Finding the Fourth Proportional to 11,131.84, 15,362.67 and 6,416.43

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Solution

The fourth proportional to 11,131.84, 15,362.67 and 6,416.43 is: 8,855.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,131.84 : 15,362.67 = 6,416.43 : x
  2. Step 2: Convert to fraction form
    11,131.84/15,362.67 = 6,416.43/x
  3. Step 3: Cross multiply
    11,131.84x = 15,362.67 × 6,416.43
  4. Step 4: Simplify right side
    11,131.84x = 98,573,496.67
  5. Step 5: Solve for x
    x = 98,573,496.67/11,131.84
  6. Step 6: Final answer
    x = 8,855.09

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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.