Home / 9,653.50-13,322.64-6,115.42

Finding the Fourth Proportional to 9,653.50, 13,322.64 and 6,115.42

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Solution

The fourth proportional to 9,653.50, 13,322.64 and 6,115.42 is: 8,439.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,653.50 : 13,322.64 = 6,115.42 : x
  2. Step 2: Convert to fraction form
    9,653.50/13,322.64 = 6,115.42/x
  3. Step 3: Cross multiply
    9,653.50x = 13,322.64 × 6,115.42
  4. Step 4: Simplify right side
    9,653.50x = 81,473,539.11
  5. Step 5: Solve for x
    x = 81,473,539.11/9,653.50
  6. Step 6: Final answer
    x = 8,439.79

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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.