Home / 15,822.99-21,837.06-9,110.79

Finding the Fourth Proportional to 15,822.99, 21,837.06 and 9,110.79

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Solution

The fourth proportional to 15,822.99, 21,837.06 and 9,110.79 is: 12,573.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,822.99 : 21,837.06 = 9,110.79 : x
  2. Step 2: Convert to fraction form
    15,822.99/21,837.06 = 9,110.79/x
  3. Step 3: Cross multiply
    15,822.99x = 21,837.06 × 9,110.79
  4. Step 4: Simplify right side
    15,822.99x = 198,952,867.88
  5. Step 5: Solve for x
    x = 198,952,867.88/15,822.99
  6. Step 6: Final answer
    x = 12,573.66

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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.