Home / 15,418.45-21,277.03-8,612.29

Finding the Fourth Proportional to 15,418.45, 21,277.03 and 8,612.29

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Solution

The fourth proportional to 15,418.45, 21,277.03 and 8,612.29 is: 11,884.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,418.45 : 21,277.03 = 8,612.29 : x
  2. Step 2: Convert to fraction form
    15,418.45/21,277.03 = 8,612.29/x
  3. Step 3: Cross multiply
    15,418.45x = 21,277.03 × 8,612.29
  4. Step 4: Simplify right side
    15,418.45x = 183,243,803.25
  5. Step 5: Solve for x
    x = 183,243,803.25/15,418.45
  6. Step 6: Final answer
    x = 11,884.71

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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.