Home / 19,746.25-27,223.19-12,660.37

Finding the Fourth Proportional to 19,746.25, 27,223.19 and 12,660.37

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Solution

The fourth proportional to 19,746.25, 27,223.19 and 12,660.37 is: 17,454.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,746.25 : 27,223.19 = 12,660.37 : x
  2. Step 2: Convert to fraction form
    19,746.25/27,223.19 = 12,660.37/x
  3. Step 3: Cross multiply
    19,746.25x = 27,223.19 × 12,660.37
  4. Step 4: Simplify right side
    19,746.25x = 344,655,574.10
  5. Step 5: Solve for x
    x = 344,655,574.10/19,746.25
  6. Step 6: Final answer
    x = 17,454.23

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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.