Home / 13,577.36-18,719.24-8,788.82

Finding the Fourth Proportional to 13,577.36, 18,719.24 and 8,788.82

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Solution

The fourth proportional to 13,577.36, 18,719.24 and 8,788.82 is: 12,117.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,577.36 : 18,719.24 = 8,788.82 : x
  2. Step 2: Convert to fraction form
    13,577.36/18,719.24 = 8,788.82/x
  3. Step 3: Cross multiply
    13,577.36x = 18,719.24 × 8,788.82
  4. Step 4: Simplify right side
    13,577.36x = 164,519,893.36
  5. Step 5: Solve for x
    x = 164,519,893.36/13,577.36
  6. Step 6: Final answer
    x = 12,117.23

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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.