Home / 12,860.39-19,270.74-8,684.03

Finding the Fourth Proportional to 12,860.39, 19,270.74 and 8,684.03

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Solution

The fourth proportional to 12,860.39, 19,270.74 and 8,684.03 is: 13,012.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,860.39 : 19,270.74 = 8,684.03 : x
  2. Step 2: Convert to fraction form
    12,860.39/19,270.74 = 8,684.03/x
  3. Step 3: Cross multiply
    12,860.39x = 19,270.74 × 8,684.03
  4. Step 4: Simplify right side
    12,860.39x = 167,347,684.28
  5. Step 5: Solve for x
    x = 167,347,684.28/12,860.39
  6. Step 6: Final answer
    x = 13,012.64

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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.