Home / 13,078.26-19,574.52-7,146.06

Finding the Fourth Proportional to 13,078.26, 19,574.52 and 7,146.06

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Solution

The fourth proportional to 13,078.26, 19,574.52 and 7,146.06 is: 10,695.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,078.26 : 19,574.52 = 7,146.06 : x
  2. Step 2: Convert to fraction form
    13,078.26/19,574.52 = 7,146.06/x
  3. Step 3: Cross multiply
    13,078.26x = 19,574.52 × 7,146.06
  4. Step 4: Simplify right side
    13,078.26x = 139,880,694.39
  5. Step 5: Solve for x
    x = 139,880,694.39/13,078.26
  6. Step 6: Final answer
    x = 10,695.67

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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.