Home / 13,205.19-19,807.37-5,408.13

Finding the Fourth Proportional to 13,205.19, 19,807.37 and 5,408.13

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Solution

The fourth proportional to 13,205.19, 19,807.37 and 5,408.13 is: 8,112.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,205.19 : 19,807.37 = 5,408.13 : x
  2. Step 2: Convert to fraction form
    13,205.19/19,807.37 = 5,408.13/x
  3. Step 3: Cross multiply
    13,205.19x = 19,807.37 × 5,408.13
  4. Step 4: Simplify right side
    13,205.19x = 107,120,831.92
  5. Step 5: Solve for x
    x = 107,120,831.92/13,205.19
  6. Step 6: Final answer
    x = 8,112.03

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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.