Home / 15,239.64-21,030.94-8,525.56

Finding the Fourth Proportional to 15,239.64, 21,030.94 and 8,525.56

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Solution

The fourth proportional to 15,239.64, 21,030.94 and 8,525.56 is: 11,765.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,239.64 : 21,030.94 = 8,525.56 : x
  2. Step 2: Convert to fraction form
    15,239.64/21,030.94 = 8,525.56/x
  3. Step 3: Cross multiply
    15,239.64x = 21,030.94 × 8,525.56
  4. Step 4: Simplify right side
    15,239.64x = 179,300,540.83
  5. Step 5: Solve for x
    x = 179,300,540.83/15,239.64
  6. Step 6: Final answer
    x = 11,765.41

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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.