Home / 13,547.05-20,318.04-4,185.88

Finding the Fourth Proportional to 13,547.05, 20,318.04 and 4,185.88

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Solution

The fourth proportional to 13,547.05, 20,318.04 and 4,185.88 is: 6,278.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,547.05 : 20,318.04 = 4,185.88 : x
  2. Step 2: Convert to fraction form
    13,547.05/20,318.04 = 4,185.88/x
  3. Step 3: Cross multiply
    13,547.05x = 20,318.04 × 4,185.88
  4. Step 4: Simplify right side
    13,547.05x = 85,048,826.48
  5. Step 5: Solve for x
    x = 85,048,826.48/13,547.05
  6. Step 6: Final answer
    x = 6,278.03

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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.