Home / 12,753.03-19,121.72-4,429.47

Finding the Fourth Proportional to 12,753.03, 19,121.72 and 4,429.47

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Solution

The fourth proportional to 12,753.03, 19,121.72 and 4,429.47 is: 6,641.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,753.03 : 19,121.72 = 4,429.47 : x
  2. Step 2: Convert to fraction form
    12,753.03/19,121.72 = 4,429.47/x
  3. Step 3: Cross multiply
    12,753.03x = 19,121.72 × 4,429.47
  4. Step 4: Simplify right side
    12,753.03x = 84,699,062.94
  5. Step 5: Solve for x
    x = 84,699,062.94/12,753.03
  6. Step 6: Final answer
    x = 6,641.49

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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.