Home / 11,918.52-16,451.67-7,384.68

Finding the Fourth Proportional to 11,918.52, 16,451.67 and 7,384.68

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Solution

The fourth proportional to 11,918.52, 16,451.67 and 7,384.68 is: 10,193.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.52 : 16,451.67 = 7,384.68 : x
  2. Step 2: Convert to fraction form
    11,918.52/16,451.67 = 7,384.68/x
  3. Step 3: Cross multiply
    11,918.52x = 16,451.67 × 7,384.68
  4. Step 4: Simplify right side
    11,918.52x = 121,490,318.42
  5. Step 5: Solve for x
    x = 121,490,318.42/11,918.52
  6. Step 6: Final answer
    x = 10,193.41

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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.