Home / 13,999.31-20,999.00-9,603.44

Finding the Fourth Proportional to 13,999.31, 20,999.00 and 9,603.44

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Solution

The fourth proportional to 13,999.31, 20,999.00 and 9,603.44 is: 14,405.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,999.31 : 20,999.00 = 9,603.44 : x
  2. Step 2: Convert to fraction form
    13,999.31/20,999.00 = 9,603.44/x
  3. Step 3: Cross multiply
    13,999.31x = 20,999.00 × 9,603.44
  4. Step 4: Simplify right side
    13,999.31x = 201,662,555.57
  5. Step 5: Solve for x
    x = 201,662,555.57/13,999.31
  6. Step 6: Final answer
    x = 14,405.18

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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.