Home / 12,730.01-18,952.44-12,668.45

Finding the Fourth Proportional to 12,730.01, 18,952.44 and 12,668.45

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Solution

The fourth proportional to 12,730.01, 18,952.44 and 12,668.45 is: 18,860.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,730.01 : 18,952.44 = 12,668.45 : x
  2. Step 2: Convert to fraction form
    12,730.01/18,952.44 = 12,668.45/x
  3. Step 3: Cross multiply
    12,730.01x = 18,952.44 × 12,668.45
  4. Step 4: Simplify right side
    12,730.01x = 240,097,896.25
  5. Step 5: Solve for x
    x = 240,097,896.25/12,730.01
  6. Step 6: Final answer
    x = 18,860.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.