Home / 13,083.60-18,058.44-8,613.36

Finding the Fourth Proportional to 13,083.60, 18,058.44 and 8,613.36

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Solution

The fourth proportional to 13,083.60, 18,058.44 and 8,613.36 is: 11,888.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,083.60 : 18,058.44 = 8,613.36 : x
  2. Step 2: Convert to fraction form
    13,083.60/18,058.44 = 8,613.36/x
  3. Step 3: Cross multiply
    13,083.60x = 18,058.44 × 8,613.36
  4. Step 4: Simplify right side
    13,083.60x = 155,543,844.76
  5. Step 5: Solve for x
    x = 155,543,844.76/13,083.60
  6. Step 6: Final answer
    x = 11,888.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.