Home / 11,271.78-15,554.48-6,235.74

Finding the Fourth Proportional to 11,271.78, 15,554.48 and 6,235.74

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Solution

The fourth proportional to 11,271.78, 15,554.48 and 6,235.74 is: 8,605.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,271.78 : 15,554.48 = 6,235.74 : x
  2. Step 2: Convert to fraction form
    11,271.78/15,554.48 = 6,235.74/x
  3. Step 3: Cross multiply
    11,271.78x = 15,554.48 × 6,235.74
  4. Step 4: Simplify right side
    11,271.78x = 96,993,661.94
  5. Step 5: Solve for x
    x = 96,993,661.94/11,271.78
  6. Step 6: Final answer
    x = 8,605.00

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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.