Home / 18,805.52-28,196.40-9,434.36

Finding the Fourth Proportional to 18,805.52, 28,196.40 and 9,434.36

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Solution

The fourth proportional to 18,805.52, 28,196.40 and 9,434.36 is: 14,145.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,805.52 : 28,196.40 = 9,434.36 : x
  2. Step 2: Convert to fraction form
    18,805.52/28,196.40 = 9,434.36/x
  3. Step 3: Cross multiply
    18,805.52x = 28,196.40 × 9,434.36
  4. Step 4: Simplify right side
    18,805.52x = 266,014,988.30
  5. Step 5: Solve for x
    x = 266,014,988.30/18,805.52
  6. Step 6: Final answer
    x = 14,145.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.