Home / 12,465.30-18,734.40-12,246.60

Finding the Fourth Proportional to 12,465.30, 18,734.40 and 12,246.60

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Solution

The fourth proportional to 12,465.30, 18,734.40 and 12,246.60 is: 18,405.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,465.30 : 18,734.40 = 12,246.60 : x
  2. Step 2: Convert to fraction form
    12,465.30/18,734.40 = 12,246.60/x
  3. Step 3: Cross multiply
    12,465.30x = 18,734.40 × 12,246.60
  4. Step 4: Simplify right side
    12,465.30x = 229,432,703.04
  5. Step 5: Solve for x
    x = 229,432,703.04/12,465.30
  6. Step 6: Final answer
    x = 18,405.71

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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.