Home / 11,926.20-16,458.92-6,890.64

Finding the Fourth Proportional to 11,926.20, 16,458.92 and 6,890.64

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Solution

The fourth proportional to 11,926.20, 16,458.92 and 6,890.64 is: 9,509.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,926.20 : 16,458.92 = 6,890.64 : x
  2. Step 2: Convert to fraction form
    11,926.20/16,458.92 = 6,890.64/x
  3. Step 3: Cross multiply
    11,926.20x = 16,458.92 × 6,890.64
  4. Step 4: Simplify right side
    11,926.20x = 113,412,492.51
  5. Step 5: Solve for x
    x = 113,412,492.51/11,926.20
  6. Step 6: Final answer
    x = 9,509.52

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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.