Home / 18,385.41-25,357.14-12,011.52

Finding the Fourth Proportional to 18,385.41, 25,357.14 and 12,011.52

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Solution

The fourth proportional to 18,385.41, 25,357.14 and 12,011.52 is: 16,566.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,385.41 : 25,357.14 = 12,011.52 : x
  2. Step 2: Convert to fraction form
    18,385.41/25,357.14 = 12,011.52/x
  3. Step 3: Cross multiply
    18,385.41x = 25,357.14 × 12,011.52
  4. Step 4: Simplify right side
    18,385.41x = 304,577,794.25
  5. Step 5: Solve for x
    x = 304,577,794.25/18,385.41
  6. Step 6: Final answer
    x = 16,566.28

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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.