Home / 10,455.02-15,685.61-4,211.82

Finding the Fourth Proportional to 10,455.02, 15,685.61 and 4,211.82

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Solution

The fourth proportional to 10,455.02, 15,685.61 and 4,211.82 is: 6,318.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,455.02 : 15,685.61 = 4,211.82 : x
  2. Step 2: Convert to fraction form
    10,455.02/15,685.61 = 4,211.82/x
  3. Step 3: Cross multiply
    10,455.02x = 15,685.61 × 4,211.82
  4. Step 4: Simplify right side
    10,455.02x = 66,064,944.85
  5. Step 5: Solve for x
    x = 66,064,944.85/10,455.02
  6. Step 6: Final answer
    x = 6,318.97

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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.