Home / 11,525.06-15,904.86-6,489.45

Finding the Fourth Proportional to 11,525.06, 15,904.86 and 6,489.45

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Solution

The fourth proportional to 11,525.06, 15,904.86 and 6,489.45 is: 8,955.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,525.06 : 15,904.86 = 6,489.45 : x
  2. Step 2: Convert to fraction form
    11,525.06/15,904.86 = 6,489.45/x
  3. Step 3: Cross multiply
    11,525.06x = 15,904.86 × 6,489.45
  4. Step 4: Simplify right side
    11,525.06x = 103,213,793.73
  5. Step 5: Solve for x
    x = 103,213,793.73/11,525.06
  6. Step 6: Final answer
    x = 8,955.60

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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.