Home / 19,718.03-27,210.85-12,644.44

Finding the Fourth Proportional to 19,718.03, 27,210.85 and 12,644.44

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Solution

The fourth proportional to 19,718.03, 27,210.85 and 12,644.44 is: 17,449.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,718.03 : 27,210.85 = 12,644.44 : x
  2. Step 2: Convert to fraction form
    19,718.03/27,210.85 = 12,644.44/x
  3. Step 3: Cross multiply
    19,718.03x = 27,210.85 × 12,644.44
  4. Step 4: Simplify right side
    19,718.03x = 344,065,860.54
  5. Step 5: Solve for x
    x = 344,065,860.54/19,718.03
  6. Step 6: Final answer
    x = 17,449.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.