Home / 15,910.13-23,859.19-12,782.45

Finding the Fourth Proportional to 15,910.13, 23,859.19 and 12,782.45

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Solution

The fourth proportional to 15,910.13, 23,859.19 and 12,782.45 is: 19,168.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,910.13 : 23,859.19 = 12,782.45 : x
  2. Step 2: Convert to fraction form
    15,910.13/23,859.19 = 12,782.45/x
  3. Step 3: Cross multiply
    15,910.13x = 23,859.19 × 12,782.45
  4. Step 4: Simplify right side
    15,910.13x = 304,978,720.01
  5. Step 5: Solve for x
    x = 304,978,720.01/15,910.13
  6. Step 6: Final answer
    x = 19,168.84

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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.