Home / 18,511.33-25,545-10,556.12

Finding the Fourth Proportional to 18,511.33, 25,545 and 10,556.12

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Solution

The fourth proportional to 18,511.33, 25,545 and 10,556.12 is: 14,567.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,511.33 : 25,545 = 10,556.12 : x
  2. Step 2: Convert to fraction form
    18,511.33/25,545 = 10,556.12/x
  3. Step 3: Cross multiply
    18,511.33x = 25,545 × 10,556.12
  4. Step 4: Simplify right side
    18,511.33x = 269,655,957.68
  5. Step 5: Solve for x
    x = 269,655,957.68/18,511.33
  6. Step 6: Final answer
    x = 14,567.08

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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.