Home / 19,977.96-27,563-12,908.54

Finding the Fourth Proportional to 19,977.96, 27,563 and 12,908.54

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Solution

The fourth proportional to 19,977.96, 27,563 and 12,908.54 is: 17,809.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,977.96 : 27,563 = 12,908.54 : x
  2. Step 2: Convert to fraction form
    19,977.96/27,563 = 12,908.54/x
  3. Step 3: Cross multiply
    19,977.96x = 27,563 × 12,908.54
  4. Step 4: Simplify right side
    19,977.96x = 355,798,088.02
  5. Step 5: Solve for x
    x = 355,798,088.02/19,977.96
  6. Step 6: Final answer
    x = 17,809.53

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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.