Home / 11,787.69-17,657.86-5,453.70

Finding the Fourth Proportional to 11,787.69, 17,657.86 and 5,453.70

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Solution

The fourth proportional to 11,787.69, 17,657.86 and 5,453.70 is: 8,169.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,787.69 : 17,657.86 = 5,453.70 : x
  2. Step 2: Convert to fraction form
    11,787.69/17,657.86 = 5,453.70/x
  3. Step 3: Cross multiply
    11,787.69x = 17,657.86 × 5,453.70
  4. Step 4: Simplify right side
    11,787.69x = 96,300,671.08
  5. Step 5: Solve for x
    x = 96,300,671.08/11,787.69
  6. Step 6: Final answer
    x = 8,169.60

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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.