Home / 7,136.96-10,695.84-4,214.72

Finding the Fourth Proportional to 7,136.96, 10,695.84 and 4,214.72

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Solution

The fourth proportional to 7,136.96, 10,695.84 and 4,214.72 is: 6,316.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136.96 : 10,695.84 = 4,214.72 : x
  2. Step 2: Convert to fraction form
    7,136.96/10,695.84 = 4,214.72/x
  3. Step 3: Cross multiply
    7,136.96x = 10,695.84 × 4,214.72
  4. Step 4: Simplify right side
    7,136.96x = 45,079,970.76
  5. Step 5: Solve for x
    x = 45,079,970.76/7,136.96
  6. Step 6: Final answer
    x = 6,316.41

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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.