Home / 12,588.09-18,882.18-4,268.19

Finding the Fourth Proportional to 12,588.09, 18,882.18 and 4,268.19

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Solution

The fourth proportional to 12,588.09, 18,882.18 and 4,268.19 is: 6,402.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,588.09 : 18,882.18 = 4,268.19 : x
  2. Step 2: Convert to fraction form
    12,588.09/18,882.18 = 4,268.19/x
  3. Step 3: Cross multiply
    12,588.09x = 18,882.18 × 4,268.19
  4. Step 4: Simplify right side
    12,588.09x = 80,592,731.85
  5. Step 5: Solve for x
    x = 80,592,731.85/12,588.09
  6. Step 6: Final answer
    x = 6,402.30

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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.