Home / 13,675.85-20,513.77-4,316.59

Finding the Fourth Proportional to 13,675.85, 20,513.77 and 4,316.59

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Solution

The fourth proportional to 13,675.85, 20,513.77 and 4,316.59 is: 6,474.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,675.85 : 20,513.77 = 4,316.59 : x
  2. Step 2: Convert to fraction form
    13,675.85/20,513.77 = 4,316.59/x
  3. Step 3: Cross multiply
    13,675.85x = 20,513.77 × 4,316.59
  4. Step 4: Simplify right side
    13,675.85x = 88,549,512.86
  5. Step 5: Solve for x
    x = 88,549,512.86/13,675.85
  6. Step 6: Final answer
    x = 6,474.88

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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.