Home / 15,419.21-23,129.26-4,889.28

Finding the Fourth Proportional to 15,419.21, 23,129.26 and 4,889.28

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Solution

The fourth proportional to 15,419.21, 23,129.26 and 4,889.28 is: 7,334.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,419.21 : 23,129.26 = 4,889.28 : x
  2. Step 2: Convert to fraction form
    15,419.21/23,129.26 = 4,889.28/x
  3. Step 3: Cross multiply
    15,419.21x = 23,129.26 × 4,889.28
  4. Step 4: Simplify right side
    15,419.21x = 113,085,403.89
  5. Step 5: Solve for x
    x = 113,085,403.89/15,419.21
  6. Step 6: Final answer
    x = 7,334.06

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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.