Home / 13,669.71-18,867.27-8,951.25

Finding the Fourth Proportional to 13,669.71, 18,867.27 and 8,951.25

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Solution

The fourth proportional to 13,669.71, 18,867.27 and 8,951.25 is: 12,354.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669.71 : 18,867.27 = 8,951.25 : x
  2. Step 2: Convert to fraction form
    13,669.71/18,867.27 = 8,951.25/x
  3. Step 3: Cross multiply
    13,669.71x = 18,867.27 × 8,951.25
  4. Step 4: Simplify right side
    13,669.71x = 168,885,650.59
  5. Step 5: Solve for x
    x = 168,885,650.59/13,669.71
  6. Step 6: Final answer
    x = 12,354.74

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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.