Home / 13,690.88-20,538.86-4,333.26

Finding the Fourth Proportional to 13,690.88, 20,538.86 and 4,333.26

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Solution

The fourth proportional to 13,690.88, 20,538.86 and 4,333.26 is: 6,500.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,690.88 : 20,538.86 = 4,333.26 : x
  2. Step 2: Convert to fraction form
    13,690.88/20,538.86 = 4,333.26/x
  3. Step 3: Cross multiply
    13,690.88x = 20,538.86 × 4,333.26
  4. Step 4: Simplify right side
    13,690.88x = 89,000,220.48
  5. Step 5: Solve for x
    x = 89,000,220.48/13,690.88
  6. Step 6: Final answer
    x = 6,500.69

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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.