Home / 12,506.76-18,771.48-6,668.28

Finding the Fourth Proportional to 12,506.76, 18,771.48 and 6,668.28

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Solution

The fourth proportional to 12,506.76, 18,771.48 and 6,668.28 is: 10,008.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,506.76 : 18,771.48 = 6,668.28 : x
  2. Step 2: Convert to fraction form
    12,506.76/18,771.48 = 6,668.28/x
  3. Step 3: Cross multiply
    12,506.76x = 18,771.48 × 6,668.28
  4. Step 4: Simplify right side
    12,506.76x = 125,173,484.65
  5. Step 5: Solve for x
    x = 125,173,484.65/12,506.76
  6. Step 6: Final answer
    x = 10,008.47

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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.