Home / 7,136.48-9,846.14-4,151.76

Finding the Fourth Proportional to 7,136.48, 9,846.14 and 4,151.76

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Solution

The fourth proportional to 7,136.48, 9,846.14 and 4,151.76 is: 5,728.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136.48 : 9,846.14 = 4,151.76 : x
  2. Step 2: Convert to fraction form
    7,136.48/9,846.14 = 4,151.76/x
  3. Step 3: Cross multiply
    7,136.48x = 9,846.14 × 4,151.76
  4. Step 4: Simplify right side
    7,136.48x = 40,878,789.45
  5. Step 5: Solve for x
    x = 40,878,789.45/7,136.48
  6. Step 6: Final answer
    x = 5,728.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.