Home / 12,858.60-19,290.30-5,839.09

Finding the Fourth Proportional to 12,858.60, 19,290.30 and 5,839.09

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Solution

The fourth proportional to 12,858.60, 19,290.30 and 5,839.09 is: 8,759.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,858.60 : 19,290.30 = 5,839.09 : x
  2. Step 2: Convert to fraction form
    12,858.60/19,290.30 = 5,839.09/x
  3. Step 3: Cross multiply
    12,858.60x = 19,290.30 × 5,839.09
  4. Step 4: Simplify right side
    12,858.60x = 112,637,797.83
  5. Step 5: Solve for x
    x = 112,637,797.83/12,858.60
  6. Step 6: Final answer
    x = 8,759.72

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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.