Home / 8,909.62-12,295.72-5,373.96

Finding the Fourth Proportional to 8,909.62, 12,295.72 and 5,373.96

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Solution

The fourth proportional to 8,909.62, 12,295.72 and 5,373.96 is: 7,416.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,909.62 : 12,295.72 = 5,373.96 : x
  2. Step 2: Convert to fraction form
    8,909.62/12,295.72 = 5,373.96/x
  3. Step 3: Cross multiply
    8,909.62x = 12,295.72 × 5,373.96
  4. Step 4: Simplify right side
    8,909.62x = 66,076,707.45
  5. Step 5: Solve for x
    x = 66,076,707.45/8,909.62
  6. Step 6: Final answer
    x = 7,416.33

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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.