Home / 12,421.62-18,628.74-6,575.04

Finding the Fourth Proportional to 12,421.62, 18,628.74 and 6,575.04

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Solution

The fourth proportional to 12,421.62, 18,628.74 and 6,575.04 is: 9,860.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,421.62 : 18,628.74 = 6,575.04 : x
  2. Step 2: Convert to fraction form
    12,421.62/18,628.74 = 6,575.04/x
  3. Step 3: Cross multiply
    12,421.62x = 18,628.74 × 6,575.04
  4. Step 4: Simplify right side
    12,421.62x = 122,484,710.65
  5. Step 5: Solve for x
    x = 122,484,710.65/12,421.62
  6. Step 6: Final answer
    x = 9,860.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.