Home / 10,621.35-14,658.03-5,905.53

Finding the Fourth Proportional to 10,621.35, 14,658.03 and 5,905.53

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Solution

The fourth proportional to 10,621.35, 14,658.03 and 5,905.53 is: 8,149.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,621.35 : 14,658.03 = 5,905.53 : x
  2. Step 2: Convert to fraction form
    10,621.35/14,658.03 = 5,905.53/x
  3. Step 3: Cross multiply
    10,621.35x = 14,658.03 × 5,905.53
  4. Step 4: Simplify right side
    10,621.35x = 86,563,435.91
  5. Step 5: Solve for x
    x = 86,563,435.91/10,621.35
  6. Step 6: Final answer
    x = 8,149.95

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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.