Home / 12,780.13-19,163.71-5,848.69

Finding the Fourth Proportional to 12,780.13, 19,163.71 and 5,848.69

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Solution

The fourth proportional to 12,780.13, 19,163.71 and 5,848.69 is: 8,770.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,780.13 : 19,163.71 = 5,848.69 : x
  2. Step 2: Convert to fraction form
    12,780.13/19,163.71 = 5,848.69/x
  3. Step 3: Cross multiply
    12,780.13x = 19,163.71 × 5,848.69
  4. Step 4: Simplify right side
    12,780.13x = 112,082,536.51
  5. Step 5: Solve for x
    x = 112,082,536.51/12,780.13
  6. Step 6: Final answer
    x = 8,770.06

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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.