Home / 12,699.63-19,048.05-3,340.53

Finding the Fourth Proportional to 12,699.63, 19,048.05 and 3,340.53

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Solution

The fourth proportional to 12,699.63, 19,048.05 and 3,340.53 is: 5,010.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,699.63 : 19,048.05 = 3,340.53 : x
  2. Step 2: Convert to fraction form
    12,699.63/19,048.05 = 3,340.53/x
  3. Step 3: Cross multiply
    12,699.63x = 19,048.05 × 3,340.53
  4. Step 4: Simplify right side
    12,699.63x = 63,630,582.47
  5. Step 5: Solve for x
    x = 63,630,582.47/12,699.63
  6. Step 6: Final answer
    x = 5,010.43

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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.