Home / 12,160.53-18,240.80-3,841.39

Finding the Fourth Proportional to 12,160.53, 18,240.80 and 3,841.39

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Solution

The fourth proportional to 12,160.53, 18,240.80 and 3,841.39 is: 5,762.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,160.53 : 18,240.80 = 3,841.39 : x
  2. Step 2: Convert to fraction form
    12,160.53/18,240.80 = 3,841.39/x
  3. Step 3: Cross multiply
    12,160.53x = 18,240.80 × 3,841.39
  4. Step 4: Simplify right side
    12,160.53x = 70,070,007.51
  5. Step 5: Solve for x
    x = 70,070,007.51/12,160.53
  6. Step 6: Final answer
    x = 5,762.09

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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.