Home / 13,725.42-18,929.54-10,888.32

Finding the Fourth Proportional to 13,725.42, 18,929.54 and 10,888.32

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Solution

The fourth proportional to 13,725.42, 18,929.54 and 10,888.32 is: 15,016.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,725.42 : 18,929.54 = 10,888.32 : x
  2. Step 2: Convert to fraction form
    13,725.42/18,929.54 = 10,888.32/x
  3. Step 3: Cross multiply
    13,725.42x = 18,929.54 × 10,888.32
  4. Step 4: Simplify right side
    13,725.42x = 206,110,888.97
  5. Step 5: Solve for x
    x = 206,110,888.97/13,725.42
  6. Step 6: Final answer
    x = 15,016.73

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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.