Home / 13,423.87-18,524.43-7,455.92

Finding the Fourth Proportional to 13,423.87, 18,524.43 and 7,455.92

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Solution

The fourth proportional to 13,423.87, 18,524.43 and 7,455.92 is: 10,288.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,423.87 : 18,524.43 = 7,455.92 : x
  2. Step 2: Convert to fraction form
    13,423.87/18,524.43 = 7,455.92/x
  3. Step 3: Cross multiply
    13,423.87x = 18,524.43 × 7,455.92
  4. Step 4: Simplify right side
    13,423.87x = 138,116,714.44
  5. Step 5: Solve for x
    x = 138,116,714.44/13,423.87
  6. Step 6: Final answer
    x = 10,288.89

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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.