Home / 10,479.03-15,715.21-3,457.73

Finding the Fourth Proportional to 10,479.03, 15,715.21 and 3,457.73

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Solution

The fourth proportional to 10,479.03, 15,715.21 and 3,457.73 is: 5,185.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,479.03 : 15,715.21 = 3,457.73 : x
  2. Step 2: Convert to fraction form
    10,479.03/15,715.21 = 3,457.73/x
  3. Step 3: Cross multiply
    10,479.03x = 15,715.21 × 3,457.73
  4. Step 4: Simplify right side
    10,479.03x = 54,339,001.58
  5. Step 5: Solve for x
    x = 54,339,001.58/10,479.03
  6. Step 6: Final answer
    x = 5,185.50

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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.