Home / 6,427.08-9,640.56-5,136.76

Finding the Fourth Proportional to 6,427.08, 9,640.56 and 5,136.76

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Solution

The fourth proportional to 6,427.08, 9,640.56 and 5,136.76 is: 7,705.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,427.08 : 9,640.56 = 5,136.76 : x
  2. Step 2: Convert to fraction form
    6,427.08/9,640.56 = 5,136.76/x
  3. Step 3: Cross multiply
    6,427.08x = 9,640.56 × 5,136.76
  4. Step 4: Simplify right side
    6,427.08x = 49,521,242.99
  5. Step 5: Solve for x
    x = 49,521,242.99/6,427.08
  6. Step 6: Final answer
    x = 7,705.09

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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.