Home / 13,746.08-20,619.48-7,899.92

Finding the Fourth Proportional to 13,746.08, 20,619.48 and 7,899.92

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Solution

The fourth proportional to 13,746.08, 20,619.48 and 7,899.92 is: 11,850.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,746.08 : 20,619.48 = 7,899.92 : x
  2. Step 2: Convert to fraction form
    13,746.08/20,619.48 = 7,899.92/x
  3. Step 3: Cross multiply
    13,746.08x = 20,619.48 × 7,899.92
  4. Step 4: Simplify right side
    13,746.08x = 162,892,242.44
  5. Step 5: Solve for x
    x = 162,892,242.44/13,746.08
  6. Step 6: Final answer
    x = 11,850.09

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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.