Home / 13,653.05-20,482.31-4,295.42

Finding the Fourth Proportional to 13,653.05, 20,482.31 and 4,295.42

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Solution

The fourth proportional to 13,653.05, 20,482.31 and 4,295.42 is: 6,443.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,653.05 : 20,482.31 = 4,295.42 : x
  2. Step 2: Convert to fraction form
    13,653.05/20,482.31 = 4,295.42/x
  3. Step 3: Cross multiply
    13,653.05x = 20,482.31 × 4,295.42
  4. Step 4: Simplify right side
    13,653.05x = 87,980,102.54
  5. Step 5: Solve for x
    x = 87,980,102.54/13,653.05
  6. Step 6: Final answer
    x = 6,443.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.