Home / 19,178.48-28,760.96-7,335.56

Finding the Fourth Proportional to 19,178.48, 28,760.96 and 7,335.56

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Solution

The fourth proportional to 19,178.48, 28,760.96 and 7,335.56 is: 11,000.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,178.48 : 28,760.96 = 7,335.56 : x
  2. Step 2: Convert to fraction form
    19,178.48/28,760.96 = 7,335.56/x
  3. Step 3: Cross multiply
    19,178.48x = 28,760.96 × 7,335.56
  4. Step 4: Simplify right side
    19,178.48x = 210,977,837.98
  5. Step 5: Solve for x
    x = 210,977,837.98/19,178.48
  6. Step 6: Final answer
    x = 11,000.76

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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.