Home / 12,858.77-19,288.01-9,757.82

Finding the Fourth Proportional to 12,858.77, 19,288.01 and 9,757.82

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Solution

The fourth proportional to 12,858.77, 19,288.01 and 9,757.82 is: 14,636.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,858.77 : 19,288.01 = 9,757.82 : x
  2. Step 2: Convert to fraction form
    12,858.77/19,288.01 = 9,757.82/x
  3. Step 3: Cross multiply
    12,858.77x = 19,288.01 × 9,757.82
  4. Step 4: Simplify right side
    12,858.77x = 188,208,833.30
  5. Step 5: Solve for x
    x = 188,208,833.30/12,858.77
  6. Step 6: Final answer
    x = 14,636.62

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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.