Home / 13,419.54-20,119.59-6,395.22

Finding the Fourth Proportional to 13,419.54, 20,119.59 and 6,395.22

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Solution

The fourth proportional to 13,419.54, 20,119.59 and 6,395.22 is: 9,588.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,419.54 : 20,119.59 = 6,395.22 : x
  2. Step 2: Convert to fraction form
    13,419.54/20,119.59 = 6,395.22/x
  3. Step 3: Cross multiply
    13,419.54x = 20,119.59 × 6,395.22
  4. Step 4: Simplify right side
    13,419.54x = 128,669,204.36
  5. Step 5: Solve for x
    x = 128,669,204.36/13,419.54
  6. Step 6: Final answer
    x = 9,588.20

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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.