Home / 13,191.05-19,788.66-4,304.31

Finding the Fourth Proportional to 13,191.05, 19,788.66 and 4,304.31

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Solution

The fourth proportional to 13,191.05, 19,788.66 and 4,304.31 is: 6,457.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,191.05 : 19,788.66 = 4,304.31 : x
  2. Step 2: Convert to fraction form
    13,191.05/19,788.66 = 4,304.31/x
  3. Step 3: Cross multiply
    13,191.05x = 19,788.66 × 4,304.31
  4. Step 4: Simplify right side
    13,191.05x = 85,176,527.12
  5. Step 5: Solve for x
    x = 85,176,527.12/13,191.05
  6. Step 6: Final answer
    x = 6,457.15

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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.