Home / 12,253.43-16,913.21-7,220.57

Finding the Fourth Proportional to 12,253.43, 16,913.21 and 7,220.57

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Solution

The fourth proportional to 12,253.43, 16,913.21 and 7,220.57 is: 9,966.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,253.43 : 16,913.21 = 7,220.57 : x
  2. Step 2: Convert to fraction form
    12,253.43/16,913.21 = 7,220.57/x
  3. Step 3: Cross multiply
    12,253.43x = 16,913.21 × 7,220.57
  4. Step 4: Simplify right side
    12,253.43x = 122,122,896.06
  5. Step 5: Solve for x
    x = 122,122,896.06/12,253.43
  6. Step 6: Final answer
    x = 9,966.42

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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.