Home / 6,668.08-10,000.36-1,986.84

Finding the Fourth Proportional to 6,668.08, 10,000.36 and 1,986.84

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Solution

The fourth proportional to 6,668.08, 10,000.36 and 1,986.84 is: 2,979.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,668.08 : 10,000.36 = 1,986.84 : x
  2. Step 2: Convert to fraction form
    6,668.08/10,000.36 = 1,986.84/x
  3. Step 3: Cross multiply
    6,668.08x = 10,000.36 × 1,986.84
  4. Step 4: Simplify right side
    6,668.08x = 19,869,115.26
  5. Step 5: Solve for x
    x = 19,869,115.26/6,668.08
  6. Step 6: Final answer
    x = 2,979.74

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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.