Home / 16,813.20-25,219.80-11,564.40

Finding the Fourth Proportional to 16,813.20, 25,219.80 and 11,564.40

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Solution

The fourth proportional to 16,813.20, 25,219.80 and 11,564.40 is: 17,346.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,813.20 : 25,219.80 = 11,564.40 : x
  2. Step 2: Convert to fraction form
    16,813.20/25,219.80 = 11,564.40/x
  3. Step 3: Cross multiply
    16,813.20x = 25,219.80 × 11,564.40
  4. Step 4: Simplify right side
    16,813.20x = 291,651,855.12
  5. Step 5: Solve for x
    x = 291,651,855.12/16,813.20
  6. Step 6: Final answer
    x = 17,346.60

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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.