Home / 18,729.12-25,846.16-10,345.62

Finding the Fourth Proportional to 18,729.12, 25,846.16 and 10,345.62

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Solution

The fourth proportional to 18,729.12, 25,846.16 and 10,345.62 is: 14,276.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,729.12 : 25,846.16 = 10,345.62 : x
  2. Step 2: Convert to fraction form
    18,729.12/25,846.16 = 10,345.62/x
  3. Step 3: Cross multiply
    18,729.12x = 25,846.16 × 10,345.62
  4. Step 4: Simplify right side
    18,729.12x = 267,394,549.82
  5. Step 5: Solve for x
    x = 267,394,549.82/18,729.12
  6. Step 6: Final answer
    x = 14,276.94

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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.