Home / 12,160.88-18,242.34-4,764.80

Finding the Fourth Proportional to 12,160.88, 18,242.34 and 4,764.80

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Solution

The fourth proportional to 12,160.88, 18,242.34 and 4,764.80 is: 7,147.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,160.88 : 18,242.34 = 4,764.80 : x
  2. Step 2: Convert to fraction form
    12,160.88/18,242.34 = 4,764.80/x
  3. Step 3: Cross multiply
    12,160.88x = 18,242.34 × 4,764.80
  4. Step 4: Simplify right side
    12,160.88x = 86,921,101.63
  5. Step 5: Solve for x
    x = 86,921,101.63/12,160.88
  6. Step 6: Final answer
    x = 7,147.60

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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.