Home / 12,548.68-18,830.30-5,623.18

Finding the Fourth Proportional to 12,548.68, 18,830.30 and 5,623.18

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Solution

The fourth proportional to 12,548.68, 18,830.30 and 5,623.18 is: 8,438.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,548.68 : 18,830.30 = 5,623.18 : x
  2. Step 2: Convert to fraction form
    12,548.68/18,830.30 = 5,623.18/x
  3. Step 3: Cross multiply
    12,548.68x = 18,830.30 × 5,623.18
  4. Step 4: Simplify right side
    12,548.68x = 105,886,072.20
  5. Step 5: Solve for x
    x = 105,886,072.20/12,548.68
  6. Step 6: Final answer
    x = 8,438.03

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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.