Home / 11,185.58-15,436.53-6,406.28

Finding the Fourth Proportional to 11,185.58, 15,436.53 and 6,406.28

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Solution

The fourth proportional to 11,185.58, 15,436.53 and 6,406.28 is: 8,840.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,185.58 : 15,436.53 = 6,406.28 : x
  2. Step 2: Convert to fraction form
    11,185.58/15,436.53 = 6,406.28/x
  3. Step 3: Cross multiply
    11,185.58x = 15,436.53 × 6,406.28
  4. Step 4: Simplify right side
    11,185.58x = 98,890,733.41
  5. Step 5: Solve for x
    x = 98,890,733.41/11,185.58
  6. Step 6: Final answer
    x = 8,840.91

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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.