Home / 12,699.28-19,042.08-5,770

Finding the Fourth Proportional to 12,699.28, 19,042.08 and 5,770

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Solution

The fourth proportional to 12,699.28, 19,042.08 and 5,770 is: 8,651.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,699.28 : 19,042.08 = 5,770 : x
  2. Step 2: Convert to fraction form
    12,699.28/19,042.08 = 5,770/x
  3. Step 3: Cross multiply
    12,699.28x = 19,042.08 × 5,770
  4. Step 4: Simplify right side
    12,699.28x = 109,872,801.60
  5. Step 5: Solve for x
    x = 109,872,801.60/12,699.28
  6. Step 6: Final answer
    x = 8,651.89

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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.