Home / 16,121.30-22,247.82-9,048.16

Finding the Fourth Proportional to 16,121.30, 22,247.82 and 9,048.16

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Solution

The fourth proportional to 16,121.30, 22,247.82 and 9,048.16 is: 12,486.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,121.30 : 22,247.82 = 9,048.16 : x
  2. Step 2: Convert to fraction form
    16,121.30/22,247.82 = 9,048.16/x
  3. Step 3: Cross multiply
    16,121.30x = 22,247.82 × 9,048.16
  4. Step 4: Simplify right side
    16,121.30x = 201,301,835.01
  5. Step 5: Solve for x
    x = 201,301,835.01/16,121.30
  6. Step 6: Final answer
    x = 12,486.70

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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.