Home / 8,186.40-12,280.23-2,922.53

Finding the Fourth Proportional to 8,186.40, 12,280.23 and 2,922.53

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Solution

The fourth proportional to 8,186.40, 12,280.23 and 2,922.53 is: 4,384.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,186.40 : 12,280.23 = 2,922.53 : x
  2. Step 2: Convert to fraction form
    8,186.40/12,280.23 = 2,922.53/x
  3. Step 3: Cross multiply
    8,186.40x = 12,280.23 × 2,922.53
  4. Step 4: Simplify right side
    8,186.40x = 35,889,279.18
  5. Step 5: Solve for x
    x = 35,889,279.18/8,186.40
  6. Step 6: Final answer
    x = 4,384.01

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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.