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Finding the Fourth Proportional to 12,752.98, 19,129.47 and 8,369.41

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Solution

The fourth proportional to 12,752.98, 19,129.47 and 8,369.41 is: 12,554.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,752.98 : 19,129.47 = 8,369.41 : x
  2. Step 2: Convert to fraction form
    12,752.98/19,129.47 = 8,369.41/x
  3. Step 3: Cross multiply
    12,752.98x = 19,129.47 × 8,369.41
  4. Step 4: Simplify right side
    12,752.98x = 160,102,377.51
  5. Step 5: Solve for x
    x = 160,102,377.51/12,752.98
  6. Step 6: Final answer
    x = 12,554.12

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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.