Home / 12,819.63-19,225.67-5,423.93

Finding the Fourth Proportional to 12,819.63, 19,225.67 and 5,423.93

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Solution

The fourth proportional to 12,819.63, 19,225.67 and 5,423.93 is: 8,134.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,819.63 : 19,225.67 = 5,423.93 : x
  2. Step 2: Convert to fraction form
    12,819.63/19,225.67 = 5,423.93/x
  3. Step 3: Cross multiply
    12,819.63x = 19,225.67 × 5,423.93
  4. Step 4: Simplify right side
    12,819.63x = 104,278,565.04
  5. Step 5: Solve for x
    x = 104,278,565.04/12,819.63
  6. Step 6: Final answer
    x = 8,134.29

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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.