Home / 12,119.44-18,152.52-10,015.60

Finding the Fourth Proportional to 12,119.44, 18,152.52 and 10,015.60

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Solution

The fourth proportional to 12,119.44, 18,152.52 and 10,015.60 is: 15,001.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,119.44 : 18,152.52 = 10,015.60 : x
  2. Step 2: Convert to fraction form
    12,119.44/18,152.52 = 10,015.60/x
  3. Step 3: Cross multiply
    12,119.44x = 18,152.52 × 10,015.60
  4. Step 4: Simplify right side
    12,119.44x = 181,808,379.31
  5. Step 5: Solve for x
    x = 181,808,379.31/12,119.44
  6. Step 6: Final answer
    x = 15,001.38

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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.