Home / 12,995.12-17,933.46-7,406

Finding the Fourth Proportional to 12,995.12, 17,933.46 and 7,406

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Solution

The fourth proportional to 12,995.12, 17,933.46 and 7,406 is: 10,220.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,995.12 : 17,933.46 = 7,406 : x
  2. Step 2: Convert to fraction form
    12,995.12/17,933.46 = 7,406/x
  3. Step 3: Cross multiply
    12,995.12x = 17,933.46 × 7,406
  4. Step 4: Simplify right side
    12,995.12x = 132,815,204.76
  5. Step 5: Solve for x
    x = 132,815,204.76/12,995.12
  6. Step 6: Final answer
    x = 10,220.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.