Home / 11,977.77-16,529.36-7,197.80

Finding the Fourth Proportional to 11,977.77, 16,529.36 and 7,197.80

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Solution

The fourth proportional to 11,977.77, 16,529.36 and 7,197.80 is: 9,932.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,977.77 : 16,529.36 = 7,197.80 : x
  2. Step 2: Convert to fraction form
    11,977.77/16,529.36 = 7,197.80/x
  3. Step 3: Cross multiply
    11,977.77x = 16,529.36 × 7,197.80
  4. Step 4: Simplify right side
    11,977.77x = 118,974,908.77
  5. Step 5: Solve for x
    x = 118,974,908.77/11,977.77
  6. Step 6: Final answer
    x = 9,932.98

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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.