Home / 13,114.21-18,096.87-7,145.59

Finding the Fourth Proportional to 13,114.21, 18,096.87 and 7,145.59

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Solution

The fourth proportional to 13,114.21, 18,096.87 and 7,145.59 is: 9,860.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,114.21 : 18,096.87 = 7,145.59 : x
  2. Step 2: Convert to fraction form
    13,114.21/18,096.87 = 7,145.59/x
  3. Step 3: Cross multiply
    13,114.21x = 18,096.87 × 7,145.59
  4. Step 4: Simplify right side
    13,114.21x = 129,312,813.30
  5. Step 5: Solve for x
    x = 129,312,813.30/13,114.21
  6. Step 6: Final answer
    x = 9,860.51

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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.