Home / 13,429.58-18,527.82-8,322.79

Finding the Fourth Proportional to 13,429.58, 18,527.82 and 8,322.79

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Solution

The fourth proportional to 13,429.58, 18,527.82 and 8,322.79 is: 11,482.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,429.58 : 18,527.82 = 8,322.79 : x
  2. Step 2: Convert to fraction form
    13,429.58/18,527.82 = 8,322.79/x
  3. Step 3: Cross multiply
    13,429.58x = 18,527.82 × 8,322.79
  4. Step 4: Simplify right side
    13,429.58x = 154,203,062.38
  5. Step 5: Solve for x
    x = 154,203,062.38/13,429.58
  6. Step 6: Final answer
    x = 11,482.34

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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.