Home / 11,620.98-16,037.28-7,147.35

Finding the Fourth Proportional to 11,620.98, 16,037.28 and 7,147.35

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Solution

The fourth proportional to 11,620.98, 16,037.28 and 7,147.35 is: 9,863.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,620.98 : 16,037.28 = 7,147.35 : x
  2. Step 2: Convert to fraction form
    11,620.98/16,037.28 = 7,147.35/x
  3. Step 3: Cross multiply
    11,620.98x = 16,037.28 × 7,147.35
  4. Step 4: Simplify right side
    11,620.98x = 114,624,053.21
  5. Step 5: Solve for x
    x = 114,624,053.21/11,620.98
  6. Step 6: Final answer
    x = 9,863.54

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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.