Home / 19,966.77-27,563-12,896.64

Finding the Fourth Proportional to 19,966.77, 27,563 and 12,896.64

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Solution

The fourth proportional to 19,966.77, 27,563 and 12,896.64 is: 17,803.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,966.77 : 27,563 = 12,896.64 : x
  2. Step 2: Convert to fraction form
    19,966.77/27,563 = 12,896.64/x
  3. Step 3: Cross multiply
    19,966.77x = 27,563 × 12,896.64
  4. Step 4: Simplify right side
    19,966.77x = 355,470,088.32
  5. Step 5: Solve for x
    x = 355,470,088.32/19,966.77
  6. Step 6: Final answer
    x = 17,803.08

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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.