Home / 13,645.08-18,829.20-7,675.60

Finding the Fourth Proportional to 13,645.08, 18,829.20 and 7,675.60

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Solution

The fourth proportional to 13,645.08, 18,829.20 and 7,675.60 is: 10,591.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,645.08 : 18,829.20 = 7,675.60 : x
  2. Step 2: Convert to fraction form
    13,645.08/18,829.20 = 7,675.60/x
  3. Step 3: Cross multiply
    13,645.08x = 18,829.20 × 7,675.60
  4. Step 4: Simplify right side
    13,645.08x = 144,525,310.75
  5. Step 5: Solve for x
    x = 144,525,310.75/13,645.08
  6. Step 6: Final answer
    x = 10,591.76

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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.