Home / 15,723.90-23,587.20-5,190.75

Finding the Fourth Proportional to 15,723.90, 23,587.20 and 5,190.75

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Solution

The fourth proportional to 15,723.90, 23,587.20 and 5,190.75 is: 7,786.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,723.90 : 23,587.20 = 5,190.75 : x
  2. Step 2: Convert to fraction form
    15,723.90/23,587.20 = 5,190.75/x
  3. Step 3: Cross multiply
    15,723.90x = 23,587.20 × 5,190.75
  4. Step 4: Simplify right side
    15,723.90x = 122,435,258.40
  5. Step 5: Solve for x
    x = 122,435,258.40/15,723.90
  6. Step 6: Final answer
    x = 7,786.57

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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.