Home / 10,215.99-14,098.14-5,739.75

Finding the Fourth Proportional to 10,215.99, 14,098.14 and 5,739.75

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Solution

The fourth proportional to 10,215.99, 14,098.14 and 5,739.75 is: 7,920.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,215.99 : 14,098.14 = 5,739.75 : x
  2. Step 2: Convert to fraction form
    10,215.99/14,098.14 = 5,739.75/x
  3. Step 3: Cross multiply
    10,215.99x = 14,098.14 × 5,739.75
  4. Step 4: Simplify right side
    10,215.99x = 80,919,799.07
  5. Step 5: Solve for x
    x = 80,919,799.07/10,215.99
  6. Step 6: Final answer
    x = 7,920.90

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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.