Home / 12,216.16-16,855.50-6,909.82

Finding the Fourth Proportional to 12,216.16, 16,855.50 and 6,909.82

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Solution

The fourth proportional to 12,216.16, 16,855.50 and 6,909.82 is: 9,533.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,216.16 : 16,855.50 = 6,909.82 : x
  2. Step 2: Convert to fraction form
    12,216.16/16,855.50 = 6,909.82/x
  3. Step 3: Cross multiply
    12,216.16x = 16,855.50 × 6,909.82
  4. Step 4: Simplify right side
    12,216.16x = 116,468,471.01
  5. Step 5: Solve for x
    x = 116,468,471.01/12,216.16
  6. Step 6: Final answer
    x = 9,533.97

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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.