Home / 12,699.02-19,044.31-4,378.83

Finding the Fourth Proportional to 12,699.02, 19,044.31 and 4,378.83

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Solution

The fourth proportional to 12,699.02, 19,044.31 and 4,378.83 is: 6,566.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,699.02 : 19,044.31 = 4,378.83 : x
  2. Step 2: Convert to fraction form
    12,699.02/19,044.31 = 4,378.83/x
  3. Step 3: Cross multiply
    12,699.02x = 19,044.31 × 4,378.83
  4. Step 4: Simplify right side
    12,699.02x = 83,391,795.96
  5. Step 5: Solve for x
    x = 83,391,795.96/12,699.02
  6. Step 6: Final answer
    x = 6,566.79

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1.5x scale

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.