Home / 15,577.55-21,496.73-8,863.03

Finding the Fourth Proportional to 15,577.55, 21,496.73 and 8,863.03

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Solution

The fourth proportional to 15,577.55, 21,496.73 and 8,863.03 is: 12,230.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,577.55 : 21,496.73 = 8,863.03 : x
  2. Step 2: Convert to fraction form
    15,577.55/21,496.73 = 8,863.03/x
  3. Step 3: Cross multiply
    15,577.55x = 21,496.73 × 8,863.03
  4. Step 4: Simplify right side
    15,577.55x = 190,526,055.41
  5. Step 5: Solve for x
    x = 190,526,055.41/15,577.55
  6. Step 6: Final answer
    x = 12,230.81

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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.