Home / 15,390.80-23,087.41-4,861.63

Finding the Fourth Proportional to 15,390.80, 23,087.41 and 4,861.63

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Solution

The fourth proportional to 15,390.80, 23,087.41 and 4,861.63 is: 7,292.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,390.80 : 23,087.41 = 4,861.63 : x
  2. Step 2: Convert to fraction form
    15,390.80/23,087.41 = 4,861.63/x
  3. Step 3: Cross multiply
    15,390.80x = 23,087.41 × 4,861.63
  4. Step 4: Simplify right side
    15,390.80x = 112,242,375.21
  5. Step 5: Solve for x
    x = 112,242,375.21/15,390.80
  6. Step 6: Final answer
    x = 7,292.83

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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.