Home / 13,550.60-18,691.64-8,951.40

Finding the Fourth Proportional to 13,550.60, 18,691.64 and 8,951.40

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Solution

The fourth proportional to 13,550.60, 18,691.64 and 8,951.40 is: 12,347.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,550.60 : 18,691.64 = 8,951.40 : x
  2. Step 2: Convert to fraction form
    13,550.60/18,691.64 = 8,951.40/x
  3. Step 3: Cross multiply
    13,550.60x = 18,691.64 × 8,951.40
  4. Step 4: Simplify right side
    13,550.60x = 167,316,346.30
  5. Step 5: Solve for x
    x = 167,316,346.30/13,550.60
  6. Step 6: Final answer
    x = 12,347.52

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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.