Home / 15,355.06-21,189.61-10,049.76

Finding the Fourth Proportional to 15,355.06, 21,189.61 and 10,049.76

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Solution

The fourth proportional to 15,355.06, 21,189.61 and 10,049.76 is: 13,868.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,355.06 : 21,189.61 = 10,049.76 : x
  2. Step 2: Convert to fraction form
    15,355.06/21,189.61 = 10,049.76/x
  3. Step 3: Cross multiply
    15,355.06x = 21,189.61 × 10,049.76
  4. Step 4: Simplify right side
    15,355.06x = 212,950,494.99
  5. Step 5: Solve for x
    x = 212,950,494.99/15,355.06
  6. Step 6: Final answer
    x = 13,868.42

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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.