Home / 15,661.44-21,613.04-8,588.64

Finding the Fourth Proportional to 15,661.44, 21,613.04 and 8,588.64

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Solution

The fourth proportional to 15,661.44, 21,613.04 and 8,588.64 is: 11,852.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,661.44 : 21,613.04 = 8,588.64 : x
  2. Step 2: Convert to fraction form
    15,661.44/21,613.04 = 8,588.64/x
  3. Step 3: Cross multiply
    15,661.44x = 21,613.04 × 8,588.64
  4. Step 4: Simplify right side
    15,661.44x = 185,626,619.87
  5. Step 5: Solve for x
    x = 185,626,619.87/15,661.44
  6. Step 6: Final answer
    x = 11,852.46

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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.