Home / 12,747.17-19,120.23-4,429.07

Finding the Fourth Proportional to 12,747.17, 19,120.23 and 4,429.07

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Solution

The fourth proportional to 12,747.17, 19,120.23 and 4,429.07 is: 6,643.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,747.17 : 19,120.23 = 4,429.07 : x
  2. Step 2: Convert to fraction form
    12,747.17/19,120.23 = 4,429.07/x
  3. Step 3: Cross multiply
    12,747.17x = 19,120.23 × 4,429.07
  4. Step 4: Simplify right side
    12,747.17x = 84,684,837.09
  5. Step 5: Solve for x
    x = 84,684,837.09/12,747.17
  6. Step 6: Final answer
    x = 6,643.42

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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.