Home / 19,213.20-26,530.74-12,152.16

Finding the Fourth Proportional to 19,213.20, 26,530.74 and 12,152.16

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Solution

The fourth proportional to 19,213.20, 26,530.74 and 12,152.16 is: 16,780.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,213.20 : 26,530.74 = 12,152.16 : x
  2. Step 2: Convert to fraction form
    19,213.20/26,530.74 = 12,152.16/x
  3. Step 3: Cross multiply
    19,213.20x = 26,530.74 × 12,152.16
  4. Step 4: Simplify right side
    19,213.20x = 322,405,797.40
  5. Step 5: Solve for x
    x = 322,405,797.40/19,213.20
  6. Step 6: Final answer
    x = 16,780.43

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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.