Home / 11,926.71-16,459.29-6,621.93

Finding the Fourth Proportional to 11,926.71, 16,459.29 and 6,621.93

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Solution

The fourth proportional to 11,926.71, 16,459.29 and 6,621.93 is: 9,138.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,926.71 : 16,459.29 = 6,621.93 : x
  2. Step 2: Convert to fraction form
    11,926.71/16,459.29 = 6,621.93/x
  3. Step 3: Cross multiply
    11,926.71x = 16,459.29 × 6,621.93
  4. Step 4: Simplify right side
    11,926.71x = 108,992,266.23
  5. Step 5: Solve for x
    x = 108,992,266.23/11,926.71
  6. Step 6: Final answer
    x = 9,138.50

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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.