Home / 10,486.90-15,732.60-3,090.70

Finding the Fourth Proportional to 10,486.90, 15,732.60 and 3,090.70

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Solution

The fourth proportional to 10,486.90, 15,732.60 and 3,090.70 is: 4,636.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,486.90 : 15,732.60 = 3,090.70 : x
  2. Step 2: Convert to fraction form
    10,486.90/15,732.60 = 3,090.70/x
  3. Step 3: Cross multiply
    10,486.90x = 15,732.60 × 3,090.70
  4. Step 4: Simplify right side
    10,486.90x = 48,624,746.82
  5. Step 5: Solve for x
    x = 48,624,746.82/10,486.90
  6. Step 6: Final answer
    x = 4,636.71

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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.