Home / 18,868.48-26,041.72-10,915.54

Finding the Fourth Proportional to 18,868.48, 26,041.72 and 10,915.54

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Solution

The fourth proportional to 18,868.48, 26,041.72 and 10,915.54 is: 15,065.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,868.48 : 26,041.72 = 10,915.54 : x
  2. Step 2: Convert to fraction form
    18,868.48/26,041.72 = 10,915.54/x
  3. Step 3: Cross multiply
    18,868.48x = 26,041.72 × 10,915.54
  4. Step 4: Simplify right side
    18,868.48x = 284,259,436.33
  5. Step 5: Solve for x
    x = 284,259,436.33/18,868.48
  6. Step 6: Final answer
    x = 15,065.31

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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.