Home / 19,143.82-28,715.77-7,457.04

Finding the Fourth Proportional to 19,143.82, 28,715.77 and 7,457.04

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Solution

The fourth proportional to 19,143.82, 28,715.77 and 7,457.04 is: 11,185.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,143.82 : 28,715.77 = 7,457.04 : x
  2. Step 2: Convert to fraction form
    19,143.82/28,715.77 = 7,457.04/x
  3. Step 3: Cross multiply
    19,143.82x = 28,715.77 × 7,457.04
  4. Step 4: Simplify right side
    19,143.82x = 214,134,645.52
  5. Step 5: Solve for x
    x = 214,134,645.52/19,143.82
  6. Step 6: Final answer
    x = 11,185.58

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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.