Home / 11,417.36-15,755.64-6,381.62

Finding the Fourth Proportional to 11,417.36, 15,755.64 and 6,381.62

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Solution

The fourth proportional to 11,417.36, 15,755.64 and 6,381.62 is: 8,806.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,417.36 : 15,755.64 = 6,381.62 : x
  2. Step 2: Convert to fraction form
    11,417.36/15,755.64 = 6,381.62/x
  3. Step 3: Cross multiply
    11,417.36x = 15,755.64 × 6,381.62
  4. Step 4: Simplify right side
    11,417.36x = 100,546,428.56
  5. Step 5: Solve for x
    x = 100,546,428.56/11,417.36
  6. Step 6: Final answer
    x = 8,806.46

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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.