Home / 13,486.35-20,228.84-4,720.58

Finding the Fourth Proportional to 13,486.35, 20,228.84 and 4,720.58

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Solution

The fourth proportional to 13,486.35, 20,228.84 and 4,720.58 is: 7,080.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,486.35 : 20,228.84 = 4,720.58 : x
  2. Step 2: Convert to fraction form
    13,486.35/20,228.84 = 4,720.58/x
  3. Step 3: Cross multiply
    13,486.35x = 20,228.84 × 4,720.58
  4. Step 4: Simplify right side
    13,486.35x = 95,491,826.34
  5. Step 5: Solve for x
    x = 95,491,826.34/13,486.35
  6. Step 6: Final answer
    x = 7,080.63

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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.