Home / 18,519.51-25,556.94-10,561.53

Finding the Fourth Proportional to 18,519.51, 25,556.94 and 10,561.53

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Solution

The fourth proportional to 18,519.51, 25,556.94 and 10,561.53 is: 14,574.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,519.51 : 25,556.94 = 10,561.53 : x
  2. Step 2: Convert to fraction form
    18,519.51/25,556.94 = 10,561.53/x
  3. Step 3: Cross multiply
    18,519.51x = 25,556.94 × 10,561.53
  4. Step 4: Simplify right side
    18,519.51x = 269,920,388.52
  5. Step 5: Solve for x
    x = 269,920,388.52/18,519.51
  6. Step 6: Final answer
    x = 14,574.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.