Home / 18,975.60-26,196.48-12,698.64

Finding the Fourth Proportional to 18,975.60, 26,196.48 and 12,698.64

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Solution

The fourth proportional to 18,975.60, 26,196.48 and 12,698.64 is: 17,530.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,975.60 : 26,196.48 = 12,698.64 : x
  2. Step 2: Convert to fraction form
    18,975.60/26,196.48 = 12,698.64/x
  3. Step 3: Cross multiply
    18,975.60x = 26,196.48 × 12,698.64
  4. Step 4: Simplify right side
    18,975.60x = 332,659,668.79
  5. Step 5: Solve for x
    x = 332,659,668.79/18,975.60
  6. Step 6: Final answer
    x = 17,530.92

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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.