Home / 18,628.08-27,951.60-12,392.34

Finding the Fourth Proportional to 18,628.08, 27,951.60 and 12,392.34

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Solution

The fourth proportional to 18,628.08, 27,951.60 and 12,392.34 is: 18,594.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,628.08 : 27,951.60 = 12,392.34 : x
  2. Step 2: Convert to fraction form
    18,628.08/27,951.60 = 12,392.34/x
  3. Step 3: Cross multiply
    18,628.08x = 27,951.60 × 12,392.34
  4. Step 4: Simplify right side
    18,628.08x = 346,385,730.74
  5. Step 5: Solve for x
    x = 346,385,730.74/18,628.08
  6. Step 6: Final answer
    x = 18,594.82

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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.