Home / 11,918.04-16,446.96-6,612.95

Finding the Fourth Proportional to 11,918.04, 16,446.96 and 6,612.95

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Solution

The fourth proportional to 11,918.04, 16,446.96 and 6,612.95 is: 9,125.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.04 : 16,446.96 = 6,612.95 : x
  2. Step 2: Convert to fraction form
    11,918.04/16,446.96 = 6,612.95/x
  3. Step 3: Cross multiply
    11,918.04x = 16,446.96 × 6,612.95
  4. Step 4: Simplify right side
    11,918.04x = 108,762,841.90
  5. Step 5: Solve for x
    x = 108,762,841.90/11,918.04
  6. Step 6: Final answer
    x = 9,125.90

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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.