Home / 14,003.16-19,321.68-8,699.28

Finding the Fourth Proportional to 14,003.16, 19,321.68 and 8,699.28

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Solution

The fourth proportional to 14,003.16, 19,321.68 and 8,699.28 is: 12,003.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,003.16 : 19,321.68 = 8,699.28 : x
  2. Step 2: Convert to fraction form
    14,003.16/19,321.68 = 8,699.28/x
  3. Step 3: Cross multiply
    14,003.16x = 19,321.68 × 8,699.28
  4. Step 4: Simplify right side
    14,003.16x = 168,084,704.39
  5. Step 5: Solve for x
    x = 168,084,704.39/14,003.16
  6. Step 6: Final answer
    x = 12,003.34

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1.5x scale

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.