Home / 12,789.08-19,177.10-5,857.64

Finding the Fourth Proportional to 12,789.08, 19,177.10 and 5,857.64

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Solution

The fourth proportional to 12,789.08, 19,177.10 and 5,857.64 is: 8,783.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,789.08 : 19,177.10 = 5,857.64 : x
  2. Step 2: Convert to fraction form
    12,789.08/19,177.10 = 5,857.64/x
  3. Step 3: Cross multiply
    12,789.08x = 19,177.10 × 5,857.64
  4. Step 4: Simplify right side
    12,789.08x = 112,332,548.04
  5. Step 5: Solve for x
    x = 112,332,548.04/12,789.08
  6. Step 6: Final answer
    x = 8,783.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.