Home / 8,285.42-11,429.57-5,136.14

Finding the Fourth Proportional to 8,285.42, 11,429.57 and 5,136.14

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Solution

The fourth proportional to 8,285.42, 11,429.57 and 5,136.14 is: 7,085.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,285.42 : 11,429.57 = 5,136.14 : x
  2. Step 2: Convert to fraction form
    8,285.42/11,429.57 = 5,136.14/x
  3. Step 3: Cross multiply
    8,285.42x = 11,429.57 × 5,136.14
  4. Step 4: Simplify right side
    8,285.42x = 58,703,913.07
  5. Step 5: Solve for x
    x = 58,703,913.07/8,285.42
  6. Step 6: Final answer
    x = 7,085.20

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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.