Home / 12,141.90-18,176.40-10,829.70

Finding the Fourth Proportional to 12,141.90, 18,176.40 and 10,829.70

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Solution

The fourth proportional to 12,141.90, 18,176.40 and 10,829.70 is: 16,212.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,141.90 : 18,176.40 = 10,829.70 : x
  2. Step 2: Convert to fraction form
    12,141.90/18,176.40 = 10,829.70/x
  3. Step 3: Cross multiply
    12,141.90x = 18,176.40 × 10,829.70
  4. Step 4: Simplify right side
    12,141.90x = 196,844,959.08
  5. Step 5: Solve for x
    x = 196,844,959.08/12,141.90
  6. Step 6: Final answer
    x = 16,212.04

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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.