Home / 11,619.76-16,036.36-7,146.44

Finding the Fourth Proportional to 11,619.76, 16,036.36 and 7,146.44

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Solution

The fourth proportional to 11,619.76, 16,036.36 and 7,146.44 is: 9,862.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,619.76 : 16,036.36 = 7,146.44 : x
  2. Step 2: Convert to fraction form
    11,619.76/16,036.36 = 7,146.44/x
  3. Step 3: Cross multiply
    11,619.76x = 16,036.36 × 7,146.44
  4. Step 4: Simplify right side
    11,619.76x = 114,602,884.56
  5. Step 5: Solve for x
    x = 114,602,884.56/11,619.76
  6. Step 6: Final answer
    x = 9,862.76

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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.