Home / 16,638.64-22,960.96-9,085.12

Finding the Fourth Proportional to 16,638.64, 22,960.96 and 9,085.12

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Solution

The fourth proportional to 16,638.64, 22,960.96 and 9,085.12 is: 12,537.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,638.64 : 22,960.96 = 9,085.12 : x
  2. Step 2: Convert to fraction form
    16,638.64/22,960.96 = 9,085.12/x
  3. Step 3: Cross multiply
    16,638.64x = 22,960.96 × 9,085.12
  4. Step 4: Simplify right side
    16,638.64x = 208,603,076.92
  5. Step 5: Solve for x
    x = 208,603,076.92/16,638.64
  6. Step 6: Final answer
    x = 12,537.27

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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.