Home / 12,267.68-16,928.12-6,890.72

Finding the Fourth Proportional to 12,267.68, 16,928.12 and 6,890.72

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Solution

The fourth proportional to 12,267.68, 16,928.12 and 6,890.72 is: 9,508.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,267.68 : 16,928.12 = 6,890.72 : x
  2. Step 2: Convert to fraction form
    12,267.68/16,928.12 = 6,890.72/x
  3. Step 3: Cross multiply
    12,267.68x = 16,928.12 × 6,890.72
  4. Step 4: Simplify right side
    12,267.68x = 116,646,867.63
  5. Step 5: Solve for x
    x = 116,646,867.63/12,267.68
  6. Step 6: Final answer
    x = 9,508.47

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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.