Home / 13,519.60-20,268.78-8,588.32

Finding the Fourth Proportional to 13,519.60, 20,268.78 and 8,588.32

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Solution

The fourth proportional to 13,519.60, 20,268.78 and 8,588.32 is: 12,875.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,519.60 : 20,268.78 = 8,588.32 : x
  2. Step 2: Convert to fraction form
    13,519.60/20,268.78 = 8,588.32/x
  3. Step 3: Cross multiply
    13,519.60x = 20,268.78 × 8,588.32
  4. Step 4: Simplify right side
    13,519.60x = 174,074,768.65
  5. Step 5: Solve for x
    x = 174,074,768.65/13,519.60
  6. Step 6: Final answer
    x = 12,875.73

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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.