Home / 7,143.83-10,725.58-3,636.21

Finding the Fourth Proportional to 7,143.83, 10,725.58 and 3,636.21

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Solution

The fourth proportional to 7,143.83, 10,725.58 and 3,636.21 is: 5,459.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,143.83 : 10,725.58 = 3,636.21 : x
  2. Step 2: Convert to fraction form
    7,143.83/10,725.58 = 3,636.21/x
  3. Step 3: Cross multiply
    7,143.83x = 10,725.58 × 3,636.21
  4. Step 4: Simplify right side
    7,143.83x = 39,000,461.25
  5. Step 5: Solve for x
    x = 39,000,461.25/7,143.83
  6. Step 6: Final answer
    x = 5,459.32

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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.