Home / 13,115.80-19,673.70-5,725.60

Finding the Fourth Proportional to 13,115.80, 19,673.70 and 5,725.60

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Solution

The fourth proportional to 13,115.80, 19,673.70 and 5,725.60 is: 8,588.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,115.80 : 19,673.70 = 5,725.60 : x
  2. Step 2: Convert to fraction form
    13,115.80/19,673.70 = 5,725.60/x
  3. Step 3: Cross multiply
    13,115.80x = 19,673.70 × 5,725.60
  4. Step 4: Simplify right side
    13,115.80x = 112,643,736.72
  5. Step 5: Solve for x
    x = 112,643,736.72/13,115.80
  6. Step 6: Final answer
    x = 8,588.40

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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.