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Finding the Fourth Proportional to 12,307.34, 18,460.87 and 8,348.79

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Solution

The fourth proportional to 12,307.34, 18,460.87 and 8,348.79 is: 12,523.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,307.34 : 18,460.87 = 8,348.79 : x
  2. Step 2: Convert to fraction form
    12,307.34/18,460.87 = 8,348.79/x
  3. Step 3: Cross multiply
    12,307.34x = 18,460.87 × 8,348.79
  4. Step 4: Simplify right side
    12,307.34x = 154,125,871.36
  5. Step 5: Solve for x
    x = 154,125,871.36/12,307.34
  6. Step 6: Final answer
    x = 12,523.09

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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.