Home / 14,335.30-21,442.20-12,865.15

Finding the Fourth Proportional to 14,335.30, 21,442.20 and 12,865.15

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Solution

The fourth proportional to 14,335.30, 21,442.20 and 12,865.15 is: 19,243.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,335.30 : 21,442.20 = 12,865.15 : x
  2. Step 2: Convert to fraction form
    14,335.30/21,442.20 = 12,865.15/x
  3. Step 3: Cross multiply
    14,335.30x = 21,442.20 × 12,865.15
  4. Step 4: Simplify right side
    14,335.30x = 275,857,119.33
  5. Step 5: Solve for x
    x = 275,857,119.33/14,335.30
  6. Step 6: Final answer
    x = 19,243.21

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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.