Home / 11,222.95-15,485.98-6,377.39

Finding the Fourth Proportional to 11,222.95, 15,485.98 and 6,377.39

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Solution

The fourth proportional to 11,222.95, 15,485.98 and 6,377.39 is: 8,799.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,222.95 : 15,485.98 = 6,377.39 : x
  2. Step 2: Convert to fraction form
    11,222.95/15,485.98 = 6,377.39/x
  3. Step 3: Cross multiply
    11,222.95x = 15,485.98 × 6,377.39
  4. Step 4: Simplify right side
    11,222.95x = 98,760,133.99
  5. Step 5: Solve for x
    x = 98,760,133.99/11,222.95
  6. Step 6: Final answer
    x = 8,799.84

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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.