Home / 12,153.69-18,218.39-10,481.04

Finding the Fourth Proportional to 12,153.69, 18,218.39 and 10,481.04

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Solution

The fourth proportional to 12,153.69, 18,218.39 and 10,481.04 is: 15,711.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,153.69 : 18,218.39 = 10,481.04 : x
  2. Step 2: Convert to fraction form
    12,153.69/18,218.39 = 10,481.04/x
  3. Step 3: Cross multiply
    12,153.69x = 18,218.39 × 10,481.04
  4. Step 4: Simplify right side
    12,153.69x = 190,947,621.92
  5. Step 5: Solve for x
    x = 190,947,621.92/12,153.69
  6. Step 6: Final answer
    x = 15,711.08

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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.