Home / 11,475.88-15,835.44-6,439.08

Finding the Fourth Proportional to 11,475.88, 15,835.44 and 6,439.08

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Solution

The fourth proportional to 11,475.88, 15,835.44 and 6,439.08 is: 8,885.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,475.88 : 15,835.44 = 6,439.08 : x
  2. Step 2: Convert to fraction form
    11,475.88/15,835.44 = 6,439.08/x
  3. Step 3: Cross multiply
    11,475.88x = 15,835.44 × 6,439.08
  4. Step 4: Simplify right side
    11,475.88x = 101,965,665.00
  5. Step 5: Solve for x
    x = 101,965,665.00/11,475.88
  6. Step 6: Final answer
    x = 8,885.22

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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.