Home / 12,716-19,051.76-8,822.88

Finding the Fourth Proportional to 12,716, 19,051.76 and 8,822.88

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Solution

The fourth proportional to 12,716, 19,051.76 and 8,822.88 is: 13,218.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,716 : 19,051.76 = 8,822.88 : x
  2. Step 2: Convert to fraction form
    12,716/19,051.76 = 8,822.88/x
  3. Step 3: Cross multiply
    12,716x = 19,051.76 × 8,822.88
  4. Step 4: Simplify right side
    12,716x = 168,091,392.27
  5. Step 5: Solve for x
    x = 168,091,392.27/12,716
  6. Step 6: Final answer
    x = 13,218.89

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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.