Home / 10,926.91-16,398.74-8,455.60

Finding the Fourth Proportional to 10,926.91, 16,398.74 and 8,455.60

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Solution

The fourth proportional to 10,926.91, 16,398.74 and 8,455.60 is: 12,689.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,926.91 : 16,398.74 = 8,455.60 : x
  2. Step 2: Convert to fraction form
    10,926.91/16,398.74 = 8,455.60/x
  3. Step 3: Cross multiply
    10,926.91x = 16,398.74 × 8,455.60
  4. Step 4: Simplify right side
    10,926.91x = 138,661,102.67
  5. Step 5: Solve for x
    x = 138,661,102.67/10,926.91
  6. Step 6: Final answer
    x = 12,689.88

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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.