Home / 12,955.75-19,435.45-6,381.99

Finding the Fourth Proportional to 12,955.75, 19,435.45 and 6,381.99

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Solution

The fourth proportional to 12,955.75, 19,435.45 and 6,381.99 is: 9,573.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,955.75 : 19,435.45 = 6,381.99 : x
  2. Step 2: Convert to fraction form
    12,955.75/19,435.45 = 6,381.99/x
  3. Step 3: Cross multiply
    12,955.75x = 19,435.45 × 6,381.99
  4. Step 4: Simplify right side
    12,955.75x = 124,036,815.64
  5. Step 5: Solve for x
    x = 124,036,815.64/12,955.75
  6. Step 6: Final answer
    x = 9,573.88

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1.5x scale

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.