Home / 10,986.80-15,162.72-6,207.62

Finding the Fourth Proportional to 10,986.80, 15,162.72 and 6,207.62

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Solution

The fourth proportional to 10,986.80, 15,162.72 and 6,207.62 is: 8,567.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,986.80 : 15,162.72 = 6,207.62 : x
  2. Step 2: Convert to fraction form
    10,986.80/15,162.72 = 6,207.62/x
  3. Step 3: Cross multiply
    10,986.80x = 15,162.72 × 6,207.62
  4. Step 4: Simplify right side
    10,986.80x = 94,124,372.89
  5. Step 5: Solve for x
    x = 94,124,372.89/10,986.80
  6. Step 6: Final answer
    x = 8,567.04

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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.