Home / 13,519.60-20,254.08-9,129.52

Finding the Fourth Proportional to 13,519.60, 20,254.08 and 9,129.52

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Solution

The fourth proportional to 13,519.60, 20,254.08 and 9,129.52 is: 13,677.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,519.60 : 20,254.08 = 9,129.52 : x
  2. Step 2: Convert to fraction form
    13,519.60/20,254.08 = 9,129.52/x
  3. Step 3: Cross multiply
    13,519.60x = 20,254.08 × 9,129.52
  4. Step 4: Simplify right side
    13,519.60x = 184,910,028.44
  5. Step 5: Solve for x
    x = 184,910,028.44/13,519.60
  6. Step 6: Final answer
    x = 13,677.18

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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.