Home / 16,409.79-22,646.39-9,338.49

Finding the Fourth Proportional to 16,409.79, 22,646.39 and 9,338.49

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Solution

The fourth proportional to 16,409.79, 22,646.39 and 9,338.49 is: 12,887.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,409.79 : 22,646.39 = 9,338.49 : x
  2. Step 2: Convert to fraction form
    16,409.79/22,646.39 = 9,338.49/x
  3. Step 3: Cross multiply
    16,409.79x = 22,646.39 × 9,338.49
  4. Step 4: Simplify right side
    16,409.79x = 211,483,039.86
  5. Step 5: Solve for x
    x = 211,483,039.86/16,409.79
  6. Step 6: Final answer
    x = 12,887.61

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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.