Home / 15,771.24-21,763.80-8,697.60

Finding the Fourth Proportional to 15,771.24, 21,763.80 and 8,697.60

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Solution

The fourth proportional to 15,771.24, 21,763.80 and 8,697.60 is: 12,002.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,771.24 : 21,763.80 = 8,697.60 : x
  2. Step 2: Convert to fraction form
    15,771.24/21,763.80 = 8,697.60/x
  3. Step 3: Cross multiply
    15,771.24x = 21,763.80 × 8,697.60
  4. Step 4: Simplify right side
    15,771.24x = 189,292,826.88
  5. Step 5: Solve for x
    x = 189,292,826.88/15,771.24
  6. Step 6: Final answer
    x = 12,002.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.