Home / 13,191.94-19,790.64-4,308.16

Finding the Fourth Proportional to 13,191.94, 19,790.64 and 4,308.16

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Solution

The fourth proportional to 13,191.94, 19,790.64 and 4,308.16 is: 6,463.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,191.94 : 19,790.64 = 4,308.16 : x
  2. Step 2: Convert to fraction form
    13,191.94/19,790.64 = 4,308.16/x
  3. Step 3: Cross multiply
    13,191.94x = 19,790.64 × 4,308.16
  4. Step 4: Simplify right side
    13,191.94x = 85,261,243.62
  5. Step 5: Solve for x
    x = 85,261,243.62/13,191.94
  6. Step 6: Final answer
    x = 6,463.13

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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.