Home / 13,058.80-19,559.40-7,855.60

Finding the Fourth Proportional to 13,058.80, 19,559.40 and 7,855.60

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Solution

The fourth proportional to 13,058.80, 19,559.40 and 7,855.60 is: 11,766.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,058.80 : 19,559.40 = 7,855.60 : x
  2. Step 2: Convert to fraction form
    13,058.80/19,559.40 = 7,855.60/x
  3. Step 3: Cross multiply
    13,058.80x = 19,559.40 × 7,855.60
  4. Step 4: Simplify right side
    13,058.80x = 153,650,822.64
  5. Step 5: Solve for x
    x = 153,650,822.64/13,058.80
  6. Step 6: Final answer
    x = 11,766.08

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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.