Home / 18,500.54-25,521.27-12,530.12

Finding the Fourth Proportional to 18,500.54, 25,521.27 and 12,530.12

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Solution

The fourth proportional to 18,500.54, 25,521.27 and 12,530.12 is: 17,285.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,500.54 : 25,521.27 = 12,530.12 : x
  2. Step 2: Convert to fraction form
    18,500.54/25,521.27 = 12,530.12/x
  3. Step 3: Cross multiply
    18,500.54x = 25,521.27 × 12,530.12
  4. Step 4: Simplify right side
    18,500.54x = 319,784,575.65
  5. Step 5: Solve for x
    x = 319,784,575.65/18,500.54
  6. Step 6: Final answer
    x = 17,285.15

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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.