Home / 11,885.16-16,421.94-11,464.68

Finding the Fourth Proportional to 11,885.16, 16,421.94 and 11,464.68

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Solution

The fourth proportional to 11,885.16, 16,421.94 and 11,464.68 is: 15,840.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,885.16 : 16,421.94 = 11,464.68 : x
  2. Step 2: Convert to fraction form
    11,885.16/16,421.94 = 11,464.68/x
  3. Step 3: Cross multiply
    11,885.16x = 16,421.94 × 11,464.68
  4. Step 4: Simplify right side
    11,885.16x = 188,272,287.08
  5. Step 5: Solve for x
    x = 188,272,287.08/11,885.16
  6. Step 6: Final answer
    x = 15,840.96

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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.