Home / 18,636.48-27,915.84-11,606.40

Finding the Fourth Proportional to 18,636.48, 27,915.84 and 11,606.40

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Solution

The fourth proportional to 18,636.48, 27,915.84 and 11,606.40 is: 17,385.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,636.48 : 27,915.84 = 11,606.40 : x
  2. Step 2: Convert to fraction form
    18,636.48/27,915.84 = 11,606.40/x
  3. Step 3: Cross multiply
    18,636.48x = 27,915.84 × 11,606.40
  4. Step 4: Simplify right side
    18,636.48x = 324,002,405.38
  5. Step 5: Solve for x
    x = 324,002,405.38/18,636.48
  6. Step 6: Final answer
    x = 17,385.39

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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.