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Finding the Fourth Proportional to 12,307.19, 18,460.78 and 3,073.19

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Solution

The fourth proportional to 12,307.19, 18,460.78 and 3,073.19 is: 4,609.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,307.19 : 18,460.78 = 3,073.19 : x
  2. Step 2: Convert to fraction form
    12,307.19/18,460.78 = 3,073.19/x
  3. Step 3: Cross multiply
    12,307.19x = 18,460.78 × 3,073.19
  4. Step 4: Simplify right side
    12,307.19x = 56,733,446.02
  5. Step 5: Solve for x
    x = 56,733,446.02/12,307.19
  6. Step 6: Final answer
    x = 4,609.78

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Similar ratio
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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.