Home / 15,072.40-22,608.60-12,156.40

Finding the Fourth Proportional to 15,072.40, 22,608.60 and 12,156.40

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Solution

The fourth proportional to 15,072.40, 22,608.60 and 12,156.40 is: 18,234.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,072.40 : 22,608.60 = 12,156.40 : x
  2. Step 2: Convert to fraction form
    15,072.40/22,608.60 = 12,156.40/x
  3. Step 3: Cross multiply
    15,072.40x = 22,608.60 × 12,156.40
  4. Step 4: Simplify right side
    15,072.40x = 274,839,185.04
  5. Step 5: Solve for x
    x = 274,839,185.04/15,072.40
  6. Step 6: Final answer
    x = 18,234.60

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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.