Home / 13,903.26-19,188.45-8,865.87

Finding the Fourth Proportional to 13,903.26, 19,188.45 and 8,865.87

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Solution

The fourth proportional to 13,903.26, 19,188.45 and 8,865.87 is: 12,236.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,903.26 : 19,188.45 = 8,865.87 : x
  2. Step 2: Convert to fraction form
    13,903.26/19,188.45 = 8,865.87/x
  3. Step 3: Cross multiply
    13,903.26x = 19,188.45 × 8,865.87
  4. Step 4: Simplify right side
    13,903.26x = 170,122,303.20
  5. Step 5: Solve for x
    x = 170,122,303.20/13,903.26
  6. Step 6: Final answer
    x = 12,236.14

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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.