Home / 18,966.28-26,167.23-12,255.86

Finding the Fourth Proportional to 18,966.28, 26,167.23 and 12,255.86

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Solution

The fourth proportional to 18,966.28, 26,167.23 and 12,255.86 is: 16,909.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,966.28 : 26,167.23 = 12,255.86 : x
  2. Step 2: Convert to fraction form
    18,966.28/26,167.23 = 12,255.86/x
  3. Step 3: Cross multiply
    18,966.28x = 26,167.23 × 12,255.86
  4. Step 4: Simplify right side
    18,966.28x = 320,701,846.19
  5. Step 5: Solve for x
    x = 320,701,846.19/18,966.28
  6. Step 6: Final answer
    x = 16,909.05

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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.