Home / 8,421.03-12,624.69-3,153.09

Finding the Fourth Proportional to 8,421.03, 12,624.69 and 3,153.09

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Solution

The fourth proportional to 8,421.03, 12,624.69 and 3,153.09 is: 4,727.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,421.03 : 12,624.69 = 3,153.09 : x
  2. Step 2: Convert to fraction form
    8,421.03/12,624.69 = 3,153.09/x
  3. Step 3: Cross multiply
    8,421.03x = 12,624.69 × 3,153.09
  4. Step 4: Simplify right side
    8,421.03x = 39,806,842.96
  5. Step 5: Solve for x
    x = 39,806,842.96/8,421.03
  6. Step 6: Final answer
    x = 4,727.08

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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.