Home / 13,542.42-20,315.31-4,775.58

Finding the Fourth Proportional to 13,542.42, 20,315.31 and 4,775.58

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Solution

The fourth proportional to 13,542.42, 20,315.31 and 4,775.58 is: 7,163.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,542.42 : 20,315.31 = 4,775.58 : x
  2. Step 2: Convert to fraction form
    13,542.42/20,315.31 = 4,775.58/x
  3. Step 3: Cross multiply
    13,542.42x = 20,315.31 × 4,775.58
  4. Step 4: Simplify right side
    13,542.42x = 97,017,388.13
  5. Step 5: Solve for x
    x = 97,017,388.13/13,542.42
  6. Step 6: Final answer
    x = 7,163.96

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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.