Home / 13,899.16-19,162.27-11,500.30

Finding the Fourth Proportional to 13,899.16, 19,162.27 and 11,500.30

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Solution

The fourth proportional to 13,899.16, 19,162.27 and 11,500.30 is: 15,855.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,899.16 : 19,162.27 = 11,500.30 : x
  2. Step 2: Convert to fraction form
    13,899.16/19,162.27 = 11,500.30/x
  3. Step 3: Cross multiply
    13,899.16x = 19,162.27 × 11,500.30
  4. Step 4: Simplify right side
    13,899.16x = 220,371,784.22
  5. Step 5: Solve for x
    x = 220,371,784.22/13,899.16
  6. Step 6: Final answer
    x = 15,855.04

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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.