Home / 12,823.40-19,245.90-6,255.20

Finding the Fourth Proportional to 12,823.40, 19,245.90 and 6,255.20

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Solution

The fourth proportional to 12,823.40, 19,245.90 and 6,255.20 is: 9,388.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,823.40 : 19,245.90 = 6,255.20 : x
  2. Step 2: Convert to fraction form
    12,823.40/19,245.90 = 6,255.20/x
  3. Step 3: Cross multiply
    12,823.40x = 19,245.90 × 6,255.20
  4. Step 4: Simplify right side
    12,823.40x = 120,386,953.68
  5. Step 5: Solve for x
    x = 120,386,953.68/12,823.40
  6. Step 6: Final answer
    x = 9,388.07

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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.