Home / 12,222.41-16,867.58-7,744.55

Finding the Fourth Proportional to 12,222.41, 16,867.58 and 7,744.55

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Solution

The fourth proportional to 12,222.41, 16,867.58 and 7,744.55 is: 10,687.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,222.41 : 16,867.58 = 7,744.55 : x
  2. Step 2: Convert to fraction form
    12,222.41/16,867.58 = 7,744.55/x
  3. Step 3: Cross multiply
    12,222.41x = 16,867.58 × 7,744.55
  4. Step 4: Simplify right side
    12,222.41x = 130,631,693.63
  5. Step 5: Solve for x
    x = 130,631,693.63/12,222.41
  6. Step 6: Final answer
    x = 10,687.89

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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.