Home / 13,033.98-17,986.46-7,725.65

Finding the Fourth Proportional to 13,033.98, 17,986.46 and 7,725.65

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Solution

The fourth proportional to 13,033.98, 17,986.46 and 7,725.65 is: 10,661.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,033.98 : 17,986.46 = 7,725.65 : x
  2. Step 2: Convert to fraction form
    13,033.98/17,986.46 = 7,725.65/x
  3. Step 3: Cross multiply
    13,033.98x = 17,986.46 × 7,725.65
  4. Step 4: Simplify right side
    13,033.98x = 138,956,966.14
  5. Step 5: Solve for x
    x = 138,956,966.14/13,033.98
  6. Step 6: Final answer
    x = 10,661.13

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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.