Home / 11,477.26-15,837.69-6,440.78

Finding the Fourth Proportional to 11,477.26, 15,837.69 and 6,440.78

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Solution

The fourth proportional to 11,477.26, 15,837.69 and 6,440.78 is: 8,887.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,477.26 : 15,837.69 = 6,440.78 : x
  2. Step 2: Convert to fraction form
    11,477.26/15,837.69 = 6,440.78/x
  3. Step 3: Cross multiply
    11,477.26x = 15,837.69 × 6,440.78
  4. Step 4: Simplify right side
    11,477.26x = 102,007,077.00
  5. Step 5: Solve for x
    x = 102,007,077.00/11,477.26
  6. Step 6: Final answer
    x = 8,887.76

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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.