Home / 12,235.91-16,885.56-6,646.91

Finding the Fourth Proportional to 12,235.91, 16,885.56 and 6,646.91

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Solution

The fourth proportional to 12,235.91, 16,885.56 and 6,646.91 is: 9,172.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,235.91 : 16,885.56 = 6,646.91 : x
  2. Step 2: Convert to fraction form
    12,235.91/16,885.56 = 6,646.91/x
  3. Step 3: Cross multiply
    12,235.91x = 16,885.56 × 6,646.91
  4. Step 4: Simplify right side
    12,235.91x = 112,236,797.62
  5. Step 5: Solve for x
    x = 112,236,797.62/12,235.91
  6. Step 6: Final answer
    x = 9,172.74

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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.