Home / 7,351.62-10,136.28-6,403.92

Finding the Fourth Proportional to 7,351.62, 10,136.28 and 6,403.92

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Solution

The fourth proportional to 7,351.62, 10,136.28 and 6,403.92 is: 8,829.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,351.62 : 10,136.28 = 6,403.92 : x
  2. Step 2: Convert to fraction form
    7,351.62/10,136.28 = 6,403.92/x
  3. Step 3: Cross multiply
    7,351.62x = 10,136.28 × 6,403.92
  4. Step 4: Simplify right side
    7,351.62x = 64,911,926.22
  5. Step 5: Solve for x
    x = 64,911,926.22/7,351.62
  6. Step 6: Final answer
    x = 8,829.61

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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.