Home / 9,690.31-14,534.09-3,115.64

Finding the Fourth Proportional to 9,690.31, 14,534.09 and 3,115.64

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Solution

The fourth proportional to 9,690.31, 14,534.09 and 3,115.64 is: 4,673.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,690.31 : 14,534.09 = 3,115.64 : x
  2. Step 2: Convert to fraction form
    9,690.31/14,534.09 = 3,115.64/x
  3. Step 3: Cross multiply
    9,690.31x = 14,534.09 × 3,115.64
  4. Step 4: Simplify right side
    9,690.31x = 45,282,903.92
  5. Step 5: Solve for x
    x = 45,282,903.92/9,690.31
  6. Step 6: Final answer
    x = 4,673.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.