Home / 14,214.06-21,330.32-6,422.94

Finding the Fourth Proportional to 14,214.06, 21,330.32 and 6,422.94

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Solution

The fourth proportional to 14,214.06, 21,330.32 and 6,422.94 is: 9,638.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,214.06 : 21,330.32 = 6,422.94 : x
  2. Step 2: Convert to fraction form
    14,214.06/21,330.32 = 6,422.94/x
  3. Step 3: Cross multiply
    14,214.06x = 21,330.32 × 6,422.94
  4. Step 4: Simplify right side
    14,214.06x = 137,003,333.43
  5. Step 5: Solve for x
    x = 137,003,333.43/14,214.06
  6. Step 6: Final answer
    x = 9,638.58

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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.