Home / 8,428.53-11,631.37-4,702.53

Finding the Fourth Proportional to 8,428.53, 11,631.37 and 4,702.53

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Solution

The fourth proportional to 8,428.53, 11,631.37 and 4,702.53 is: 6,489.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,428.53 : 11,631.37 = 4,702.53 : x
  2. Step 2: Convert to fraction form
    8,428.53/11,631.37 = 4,702.53/x
  3. Step 3: Cross multiply
    8,428.53x = 11,631.37 × 4,702.53
  4. Step 4: Simplify right side
    8,428.53x = 54,696,866.37
  5. Step 5: Solve for x
    x = 54,696,866.37/8,428.53
  6. Step 6: Final answer
    x = 6,489.49

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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.