Home / 13,975.46-19,285.74-7,687.84

Finding the Fourth Proportional to 13,975.46, 19,285.74 and 7,687.84

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Solution

The fourth proportional to 13,975.46, 19,285.74 and 7,687.84 is: 10,609.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.46 : 19,285.74 = 7,687.84 : x
  2. Step 2: Convert to fraction form
    13,975.46/19,285.74 = 7,687.84/x
  3. Step 3: Cross multiply
    13,975.46x = 19,285.74 × 7,687.84
  4. Step 4: Simplify right side
    13,975.46x = 148,265,586.97
  5. Step 5: Solve for x
    x = 148,265,586.97/13,975.46
  6. Step 6: Final answer
    x = 10,609.00

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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.