Home / 18,289.69-27,432.54-12,404.39

Finding the Fourth Proportional to 18,289.69, 27,432.54 and 12,404.39

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Solution

The fourth proportional to 18,289.69, 27,432.54 and 12,404.39 is: 18,605.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,289.69 : 27,432.54 = 12,404.39 : x
  2. Step 2: Convert to fraction form
    18,289.69/27,432.54 = 12,404.39/x
  3. Step 3: Cross multiply
    18,289.69x = 27,432.54 × 12,404.39
  4. Step 4: Simplify right side
    18,289.69x = 340,283,787.69
  5. Step 5: Solve for x
    x = 340,283,787.69/18,289.69
  6. Step 6: Final answer
    x = 18,605.22

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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.