Home / 11,620.46-16,036.34-6,315.28

Finding the Fourth Proportional to 11,620.46, 16,036.34 and 6,315.28

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Solution

The fourth proportional to 11,620.46, 16,036.34 and 6,315.28 is: 8,715.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,620.46 : 16,036.34 = 6,315.28 : x
  2. Step 2: Convert to fraction form
    11,620.46/16,036.34 = 6,315.28/x
  3. Step 3: Cross multiply
    11,620.46x = 16,036.34 × 6,315.28
  4. Step 4: Simplify right side
    11,620.46x = 101,273,865.52
  5. Step 5: Solve for x
    x = 101,273,865.52/11,620.46
  6. Step 6: Final answer
    x = 8,715.13

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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.