Home / 18,507.48-25,525.92-12,127.08

Finding the Fourth Proportional to 18,507.48, 25,525.92 and 12,127.08

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Solution

The fourth proportional to 18,507.48, 25,525.92 and 12,127.08 is: 16,725.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,507.48 : 25,525.92 = 12,127.08 : x
  2. Step 2: Convert to fraction form
    18,507.48/25,525.92 = 12,127.08/x
  3. Step 3: Cross multiply
    18,507.48x = 25,525.92 × 12,127.08
  4. Step 4: Simplify right side
    18,507.48x = 309,554,873.91
  5. Step 5: Solve for x
    x = 309,554,873.91/18,507.48
  6. Step 6: Final answer
    x = 16,725.93

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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.