Home / 16,631.81-22,920.32-11,907.89

Finding the Fourth Proportional to 16,631.81, 22,920.32 and 11,907.89

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Solution

The fourth proportional to 16,631.81, 22,920.32 and 11,907.89 is: 16,410.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,631.81 : 22,920.32 = 11,907.89 : x
  2. Step 2: Convert to fraction form
    16,631.81/22,920.32 = 11,907.89/x
  3. Step 3: Cross multiply
    16,631.81x = 22,920.32 × 11,907.89
  4. Step 4: Simplify right side
    16,631.81x = 272,932,564.49
  5. Step 5: Solve for x
    x = 272,932,564.49/16,631.81
  6. Step 6: Final answer
    x = 16,410.28

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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.