Home / 16,431.03-22,669.20-9,355.68

Finding the Fourth Proportional to 16,431.03, 22,669.20 and 9,355.68

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Solution

The fourth proportional to 16,431.03, 22,669.20 and 9,355.68 is: 12,907.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,431.03 : 22,669.20 = 9,355.68 : x
  2. Step 2: Convert to fraction form
    16,431.03/22,669.20 = 9,355.68/x
  3. Step 3: Cross multiply
    16,431.03x = 22,669.20 × 9,355.68
  4. Step 4: Simplify right side
    16,431.03x = 212,085,781.06
  5. Step 5: Solve for x
    x = 212,085,781.06/16,431.03
  6. Step 6: Final answer
    x = 12,907.64

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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.