Home / 14,819.40-22,120.92-12,951

Finding the Fourth Proportional to 14,819.40, 22,120.92 and 12,951

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Solution

The fourth proportional to 14,819.40, 22,120.92 and 12,951 is: 19,331.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,819.40 : 22,120.92 = 12,951 : x
  2. Step 2: Convert to fraction form
    14,819.40/22,120.92 = 12,951/x
  3. Step 3: Cross multiply
    14,819.40x = 22,120.92 × 12,951
  4. Step 4: Simplify right side
    14,819.40x = 286,488,034.92
  5. Step 5: Solve for x
    x = 286,488,034.92/14,819.40
  6. Step 6: Final answer
    x = 19,331.96

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.