Home / 12,357.70-18,520.35-4,956.10

Finding the Fourth Proportional to 12,357.70, 18,520.35 and 4,956.10

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Solution

The fourth proportional to 12,357.70, 18,520.35 and 4,956.10 is: 7,427.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,357.70 : 18,520.35 = 4,956.10 : x
  2. Step 2: Convert to fraction form
    12,357.70/18,520.35 = 4,956.10/x
  3. Step 3: Cross multiply
    12,357.70x = 18,520.35 × 4,956.10
  4. Step 4: Simplify right side
    12,357.70x = 91,788,706.64
  5. Step 5: Solve for x
    x = 91,788,706.64/12,357.70
  6. Step 6: Final answer
    x = 7,427.65

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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.