Home / 9,921.42-13,684.34-6,567.11

Finding the Fourth Proportional to 9,921.42, 13,684.34 and 6,567.11

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Solution

The fourth proportional to 9,921.42, 13,684.34 and 6,567.11 is: 9,057.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,921.42 : 13,684.34 = 6,567.11 : x
  2. Step 2: Convert to fraction form
    9,921.42/13,684.34 = 6,567.11/x
  3. Step 3: Cross multiply
    9,921.42x = 13,684.34 × 6,567.11
  4. Step 4: Simplify right side
    9,921.42x = 89,866,565.37
  5. Step 5: Solve for x
    x = 89,866,565.37/9,921.42
  6. Step 6: Final answer
    x = 9,057.83

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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.