Home / 12,982.12-19,459.14-5,182.36

Finding the Fourth Proportional to 12,982.12, 19,459.14 and 5,182.36

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Solution

The fourth proportional to 12,982.12, 19,459.14 and 5,182.36 is: 7,767.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,982.12 : 19,459.14 = 5,182.36 : x
  2. Step 2: Convert to fraction form
    12,982.12/19,459.14 = 5,182.36/x
  3. Step 3: Cross multiply
    12,982.12x = 19,459.14 × 5,182.36
  4. Step 4: Simplify right side
    12,982.12x = 100,844,268.77
  5. Step 5: Solve for x
    x = 100,844,268.77/12,982.12
  6. Step 6: Final answer
    x = 7,767.94

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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.