Home / 12,556.51-18,840.89-5,163.19

Finding the Fourth Proportional to 12,556.51, 18,840.89 and 5,163.19

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Solution

The fourth proportional to 12,556.51, 18,840.89 and 5,163.19 is: 7,747.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,556.51 : 18,840.89 = 5,163.19 : x
  2. Step 2: Convert to fraction form
    12,556.51/18,840.89 = 5,163.19/x
  3. Step 3: Cross multiply
    12,556.51x = 18,840.89 × 5,163.19
  4. Step 4: Simplify right side
    12,556.51x = 97,279,069.02
  5. Step 5: Solve for x
    x = 97,279,069.02/12,556.51
  6. Step 6: Final answer
    x = 7,747.30

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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.