Home / 11,485.32-15,846.58-6,449.06

Finding the Fourth Proportional to 11,485.32, 15,846.58 and 6,449.06

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Solution

The fourth proportional to 11,485.32, 15,846.58 and 6,449.06 is: 8,897.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,485.32 : 15,846.58 = 6,449.06 : x
  2. Step 2: Convert to fraction form
    11,485.32/15,846.58 = 6,449.06/x
  3. Step 3: Cross multiply
    11,485.32x = 15,846.58 × 6,449.06
  4. Step 4: Simplify right side
    11,485.32x = 102,195,545.21
  5. Step 5: Solve for x
    x = 102,195,545.21/11,485.32
  6. Step 6: Final answer
    x = 8,897.93

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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.