Home / 11,485.35-15,848.55-6,450.12

Finding the Fourth Proportional to 11,485.35, 15,848.55 and 6,450.12

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Solution

The fourth proportional to 11,485.35, 15,848.55 and 6,450.12 is: 8,900.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,485.35 : 15,848.55 = 6,450.12 : x
  2. Step 2: Convert to fraction form
    11,485.35/15,848.55 = 6,450.12/x
  3. Step 3: Cross multiply
    11,485.35x = 15,848.55 × 6,450.12
  4. Step 4: Simplify right side
    11,485.35x = 102,225,049.33
  5. Step 5: Solve for x
    x = 102,225,049.33/11,485.35
  6. Step 6: Final answer
    x = 8,900.47

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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.