Home / 12,513.01-18,749.75-10,161.57

Finding the Fourth Proportional to 12,513.01, 18,749.75 and 10,161.57

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Solution

The fourth proportional to 12,513.01, 18,749.75 and 10,161.57 is: 15,226.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,513.01 : 18,749.75 = 10,161.57 : x
  2. Step 2: Convert to fraction form
    12,513.01/18,749.75 = 10,161.57/x
  3. Step 3: Cross multiply
    12,513.01x = 18,749.75 × 10,161.57
  4. Step 4: Simplify right side
    12,513.01x = 190,526,923.25
  5. Step 5: Solve for x
    x = 190,526,923.25/12,513.01
  6. Step 6: Final answer
    x = 15,226.31

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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.