Home / 7,618.46-11,428.59-2,687.07

Finding the Fourth Proportional to 7,618.46, 11,428.59 and 2,687.07

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Solution

The fourth proportional to 7,618.46, 11,428.59 and 2,687.07 is: 4,030.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,618.46 : 11,428.59 = 2,687.07 : x
  2. Step 2: Convert to fraction form
    7,618.46/11,428.59 = 2,687.07/x
  3. Step 3: Cross multiply
    7,618.46x = 11,428.59 × 2,687.07
  4. Step 4: Simplify right side
    7,618.46x = 30,709,474.27
  5. Step 5: Solve for x
    x = 30,709,474.27/7,618.46
  6. Step 6: Final answer
    x = 4,030.93

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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.