Home / 12,688.89-19,022.39-6,106.02

Finding the Fourth Proportional to 12,688.89, 19,022.39 and 6,106.02

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Solution

The fourth proportional to 12,688.89, 19,022.39 and 6,106.02 is: 9,153.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,688.89 : 19,022.39 = 6,106.02 : x
  2. Step 2: Convert to fraction form
    12,688.89/19,022.39 = 6,106.02/x
  3. Step 3: Cross multiply
    12,688.89x = 19,022.39 × 6,106.02
  4. Step 4: Simplify right side
    12,688.89x = 116,151,093.79
  5. Step 5: Solve for x
    x = 116,151,093.79/12,688.89
  6. Step 6: Final answer
    x = 9,153.76

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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.