Home / 13,388.36-18,452.88-8,904.11

Finding the Fourth Proportional to 13,388.36, 18,452.88 and 8,904.11

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Solution

The fourth proportional to 13,388.36, 18,452.88 and 8,904.11 is: 12,272.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,388.36 : 18,452.88 = 8,904.11 : x
  2. Step 2: Convert to fraction form
    13,388.36/18,452.88 = 8,904.11/x
  3. Step 3: Cross multiply
    13,388.36x = 18,452.88 × 8,904.11
  4. Step 4: Simplify right side
    13,388.36x = 164,306,381.07
  5. Step 5: Solve for x
    x = 164,306,381.07/13,388.36
  6. Step 6: Final answer
    x = 12,272.33

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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.