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Finding the Fourth Proportional to 14,390.91, 21,601.08 and 11,884.11

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Solution

The fourth proportional to 14,390.91, 21,601.08 and 11,884.11 is: 17,838.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,390.91 : 21,601.08 = 11,884.11 : x
  2. Step 2: Convert to fraction form
    14,390.91/21,601.08 = 11,884.11/x
  3. Step 3: Cross multiply
    14,390.91x = 21,601.08 × 11,884.11
  4. Step 4: Simplify right side
    14,390.91x = 256,709,610.84
  5. Step 5: Solve for x
    x = 256,709,610.84/14,390.91
  6. Step 6: Final answer
    x = 17,838.32

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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.