Home / 14,129.08-19,587.44-13,380.12

Finding the Fourth Proportional to 14,129.08, 19,587.44 and 13,380.12

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Solution

The fourth proportional to 14,129.08, 19,587.44 and 13,380.12 is: 18,549.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,129.08 : 19,587.44 = 13,380.12 : x
  2. Step 2: Convert to fraction form
    14,129.08/19,587.44 = 13,380.12/x
  3. Step 3: Cross multiply
    14,129.08x = 19,587.44 × 13,380.12
  4. Step 4: Simplify right side
    14,129.08x = 262,082,297.69
  5. Step 5: Solve for x
    x = 262,082,297.69/14,129.08
  6. Step 6: Final answer
    x = 18,549.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.