Home / 19,212.17-28,779.30-10,874.66

Finding the Fourth Proportional to 19,212.17, 28,779.30 and 10,874.66

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Solution

The fourth proportional to 19,212.17, 28,779.30 and 10,874.66 is: 16,289.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,212.17 : 28,779.30 = 10,874.66 : x
  2. Step 2: Convert to fraction form
    19,212.17/28,779.30 = 10,874.66/x
  3. Step 3: Cross multiply
    19,212.17x = 28,779.30 × 10,874.66
  4. Step 4: Simplify right side
    19,212.17x = 312,964,958.64
  5. Step 5: Solve for x
    x = 312,964,958.64/19,212.17
  6. Step 6: Final answer
    x = 16,289.94

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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.