Home / 6,136.10-9,204.15-5,431.40

Finding the Fourth Proportional to 6,136.10, 9,204.15 and 5,431.40

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Solution

The fourth proportional to 6,136.10, 9,204.15 and 5,431.40 is: 8,147.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,136.10 : 9,204.15 = 5,431.40 : x
  2. Step 2: Convert to fraction form
    6,136.10/9,204.15 = 5,431.40/x
  3. Step 3: Cross multiply
    6,136.10x = 9,204.15 × 5,431.40
  4. Step 4: Simplify right side
    6,136.10x = 49,991,420.31
  5. Step 5: Solve for x
    x = 49,991,420.31/6,136.10
  6. Step 6: Final answer
    x = 8,147.10

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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.