Home / 19,848.16-27,391.44-11,891.68

Finding the Fourth Proportional to 19,848.16, 27,391.44 and 11,891.68

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Solution

The fourth proportional to 19,848.16, 27,391.44 and 11,891.68 is: 16,411.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,848.16 : 27,391.44 = 11,891.68 : x
  2. Step 2: Convert to fraction form
    19,848.16/27,391.44 = 11,891.68/x
  3. Step 3: Cross multiply
    19,848.16x = 27,391.44 × 11,891.68
  4. Step 4: Simplify right side
    19,848.16x = 325,730,239.22
  5. Step 5: Solve for x
    x = 325,730,239.22/19,848.16
  6. Step 6: Final answer
    x = 16,411.11

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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.