Home / 18,513.45-25,537.95-10,554.30

Finding the Fourth Proportional to 18,513.45, 25,537.95 and 10,554.30

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Solution

The fourth proportional to 18,513.45, 25,537.95 and 10,554.30 is: 14,558.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,513.45 : 25,537.95 = 10,554.30 : x
  2. Step 2: Convert to fraction form
    18,513.45/25,537.95 = 10,554.30/x
  3. Step 3: Cross multiply
    18,513.45x = 25,537.95 × 10,554.30
  4. Step 4: Simplify right side
    18,513.45x = 269,535,185.69
  5. Step 5: Solve for x
    x = 269,535,185.69/18,513.45
  6. Step 6: Final answer
    x = 14,558.88

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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.