Home / 11,814.78-16,305.14-6,509.60

Finding the Fourth Proportional to 11,814.78, 16,305.14 and 6,509.60

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Solution

The fourth proportional to 11,814.78, 16,305.14 and 6,509.60 is: 8,983.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,814.78 : 16,305.14 = 6,509.60 : x
  2. Step 2: Convert to fraction form
    11,814.78/16,305.14 = 6,509.60/x
  3. Step 3: Cross multiply
    11,814.78x = 16,305.14 × 6,509.60
  4. Step 4: Simplify right side
    11,814.78x = 106,139,825.27
  5. Step 5: Solve for x
    x = 106,139,825.27/11,814.78
  6. Step 6: Final answer
    x = 8,983.65

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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.