Home / 11,485.34-15,848.79-6,449.16

Finding the Fourth Proportional to 11,485.34, 15,848.79 and 6,449.16

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Solution

The fourth proportional to 11,485.34, 15,848.79 and 6,449.16 is: 8,899.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,485.34 : 15,848.79 = 6,449.16 : x
  2. Step 2: Convert to fraction form
    11,485.34/15,848.79 = 6,449.16/x
  3. Step 3: Cross multiply
    11,485.34x = 15,848.79 × 6,449.16
  4. Step 4: Simplify right side
    11,485.34x = 102,211,382.52
  5. Step 5: Solve for x
    x = 102,211,382.52/11,485.34
  6. Step 6: Final answer
    x = 8,899.29

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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.