Home / 11,325.51-15,628.74-6,289.95

Finding the Fourth Proportional to 11,325.51, 15,628.74 and 6,289.95

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Solution

The fourth proportional to 11,325.51, 15,628.74 and 6,289.95 is: 8,679.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,325.51 : 15,628.74 = 6,289.95 : x
  2. Step 2: Convert to fraction form
    11,325.51/15,628.74 = 6,289.95/x
  3. Step 3: Cross multiply
    11,325.51x = 15,628.74 × 6,289.95
  4. Step 4: Simplify right side
    11,325.51x = 98,303,993.16
  5. Step 5: Solve for x
    x = 98,303,993.16/11,325.51
  6. Step 6: Final answer
    x = 8,679.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.