Home / 18,513.71-25,522.34-13,199.30

Finding the Fourth Proportional to 18,513.71, 25,522.34 and 13,199.30

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Solution

The fourth proportional to 18,513.71, 25,522.34 and 13,199.30 is: 18,196.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,513.71 : 25,522.34 = 13,199.30 : x
  2. Step 2: Convert to fraction form
    18,513.71/25,522.34 = 13,199.30/x
  3. Step 3: Cross multiply
    18,513.71x = 25,522.34 × 13,199.30
  4. Step 4: Simplify right side
    18,513.71x = 336,877,022.36
  5. Step 5: Solve for x
    x = 336,877,022.36/18,513.71
  6. Step 6: Final answer
    x = 18,196.08

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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.