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Finding the Fourth Proportional to 12,279.54, 16,946.03 and 7,244.99

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Solution

The fourth proportional to 12,279.54, 16,946.03 and 7,244.99 is: 9,998.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,279.54 : 16,946.03 = 7,244.99 : x
  2. Step 2: Convert to fraction form
    12,279.54/16,946.03 = 7,244.99/x
  3. Step 3: Cross multiply
    12,279.54x = 16,946.03 × 7,244.99
  4. Step 4: Simplify right side
    12,279.54x = 122,773,751.27
  5. Step 5: Solve for x
    x = 122,773,751.27/12,279.54
  6. Step 6: Final answer
    x = 9,998.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.