Home / 14,132.64-21,205.92-9,999.21

Finding the Fourth Proportional to 14,132.64, 21,205.92 and 9,999.21

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Solution

The fourth proportional to 14,132.64, 21,205.92 and 9,999.21 is: 15,003.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,132.64 : 21,205.92 = 9,999.21 : x
  2. Step 2: Convert to fraction form
    14,132.64/21,205.92 = 9,999.21/x
  3. Step 3: Cross multiply
    14,132.64x = 21,205.92 × 9,999.21
  4. Step 4: Simplify right side
    14,132.64x = 212,042,447.32
  5. Step 5: Solve for x
    x = 212,042,447.32/14,132.64
  6. Step 6: Final answer
    x = 15,003.74

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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.