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Finding the Fourth Proportional to 12,668.70, 19,005.21 and 4,349.52

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Solution

The fourth proportional to 12,668.70, 19,005.21 and 4,349.52 is: 6,525.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,668.70 : 19,005.21 = 4,349.52 : x
  2. Step 2: Convert to fraction form
    12,668.70/19,005.21 = 4,349.52/x
  3. Step 3: Cross multiply
    12,668.70x = 19,005.21 × 4,349.52
  4. Step 4: Simplify right side
    12,668.70x = 82,663,541.00
  5. Step 5: Solve for x
    x = 82,663,541.00/12,668.70
  6. Step 6: Final answer
    x = 6,525.02

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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.