Home / 19,005.66-28,507.80-5,857.74

Finding the Fourth Proportional to 19,005.66, 28,507.80 and 5,857.74

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Solution

The fourth proportional to 19,005.66, 28,507.80 and 5,857.74 is: 8,786.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,005.66 : 28,507.80 = 5,857.74 : x
  2. Step 2: Convert to fraction form
    19,005.66/28,507.80 = 5,857.74/x
  3. Step 3: Cross multiply
    19,005.66x = 28,507.80 × 5,857.74
  4. Step 4: Simplify right side
    19,005.66x = 166,991,280.37
  5. Step 5: Solve for x
    x = 166,991,280.37/19,005.66
  6. Step 6: Final answer
    x = 8,786.40

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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.