Home / 12,675.60-19,018.80-8,777.88

Finding the Fourth Proportional to 12,675.60, 19,018.80 and 8,777.88

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Solution

The fourth proportional to 12,675.60, 19,018.80 and 8,777.88 is: 13,170.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,675.60 : 19,018.80 = 8,777.88 : x
  2. Step 2: Convert to fraction form
    12,675.60/19,018.80 = 8,777.88/x
  3. Step 3: Cross multiply
    12,675.60x = 19,018.80 × 8,777.88
  4. Step 4: Simplify right side
    12,675.60x = 166,944,744.14
  5. Step 5: Solve for x
    x = 166,944,744.14/12,675.60
  6. Step 6: Final answer
    x = 13,170.56

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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.