Home / 12,221.37-18,332.40-4,322.77

Finding the Fourth Proportional to 12,221.37, 18,332.40 and 4,322.77

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Solution

The fourth proportional to 12,221.37, 18,332.40 and 4,322.77 is: 6,484.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,221.37 : 18,332.40 = 4,322.77 : x
  2. Step 2: Convert to fraction form
    12,221.37/18,332.40 = 4,322.77/x
  3. Step 3: Cross multiply
    12,221.37x = 18,332.40 × 4,322.77
  4. Step 4: Simplify right side
    12,221.37x = 79,246,702.92
  5. Step 5: Solve for x
    x = 79,246,702.92/12,221.37
  6. Step 6: Final answer
    x = 6,484.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.