Home / 14,099.19-21,107.67-12,219.39

Finding the Fourth Proportional to 14,099.19, 21,107.67 and 12,219.39

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Solution

The fourth proportional to 14,099.19, 21,107.67 and 12,219.39 is: 18,293.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,099.19 : 21,107.67 = 12,219.39 : x
  2. Step 2: Convert to fraction form
    14,099.19/21,107.67 = 12,219.39/x
  3. Step 3: Cross multiply
    14,099.19x = 21,107.67 × 12,219.39
  4. Step 4: Simplify right side
    14,099.19x = 257,922,851.72
  5. Step 5: Solve for x
    x = 257,922,851.72/14,099.19
  6. Step 6: Final answer
    x = 18,293.45

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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.