Home / 12,585.30-18,914.40-12,366.60

Finding the Fourth Proportional to 12,585.30, 18,914.40 and 12,366.60

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Solution

The fourth proportional to 12,585.30, 18,914.40 and 12,366.60 is: 18,585.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,585.30 : 18,914.40 = 12,366.60 : x
  2. Step 2: Convert to fraction form
    12,585.30/18,914.40 = 12,366.60/x
  3. Step 3: Cross multiply
    12,585.30x = 18,914.40 × 12,366.60
  4. Step 4: Simplify right side
    12,585.30x = 233,906,819.04
  5. Step 5: Solve for x
    x = 233,906,819.04/12,585.30
  6. Step 6: Final answer
    x = 18,585.72

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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.