Home / 13,419.32-20,038.62-10,959.02

Finding the Fourth Proportional to 13,419.32, 20,038.62 and 10,959.02

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Solution

The fourth proportional to 13,419.32, 20,038.62 and 10,959.02 is: 16,364.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,419.32 : 20,038.62 = 10,959.02 : x
  2. Step 2: Convert to fraction form
    13,419.32/20,038.62 = 10,959.02/x
  3. Step 3: Cross multiply
    13,419.32x = 20,038.62 × 10,959.02
  4. Step 4: Simplify right side
    13,419.32x = 219,603,582.56
  5. Step 5: Solve for x
    x = 219,603,582.56/13,419.32
  6. Step 6: Final answer
    x = 16,364.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.