Home / 13,999.80-21,002.28-4,004.12

Finding the Fourth Proportional to 13,999.80, 21,002.28 and 4,004.12

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Solution

The fourth proportional to 13,999.80, 21,002.28 and 4,004.12 is: 6,006.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,999.80 : 21,002.28 = 4,004.12 : x
  2. Step 2: Convert to fraction form
    13,999.80/21,002.28 = 4,004.12/x
  3. Step 3: Cross multiply
    13,999.80x = 21,002.28 × 4,004.12
  4. Step 4: Simplify right side
    13,999.80x = 84,095,544.38
  5. Step 5: Solve for x
    x = 84,095,544.38/13,999.80
  6. Step 6: Final answer
    x = 6,006.91

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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.