Home / 15,253.36-21,050.60-8,538.56

Finding the Fourth Proportional to 15,253.36, 21,050.60 and 8,538.56

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Solution

The fourth proportional to 15,253.36, 21,050.60 and 8,538.56 is: 11,783.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,253.36 : 21,050.60 = 8,538.56 : x
  2. Step 2: Convert to fraction form
    15,253.36/21,050.60 = 8,538.56/x
  3. Step 3: Cross multiply
    15,253.36x = 21,050.60 × 8,538.56
  4. Step 4: Simplify right side
    15,253.36x = 179,741,811.14
  5. Step 5: Solve for x
    x = 179,741,811.14/15,253.36
  6. Step 6: Final answer
    x = 11,783.75

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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.