Home / 12,493.72-18,743.28-4,702.51

Finding the Fourth Proportional to 12,493.72, 18,743.28 and 4,702.51

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Solution

The fourth proportional to 12,493.72, 18,743.28 and 4,702.51 is: 7,054.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,493.72 : 18,743.28 = 4,702.51 : x
  2. Step 2: Convert to fraction form
    12,493.72/18,743.28 = 4,702.51/x
  3. Step 3: Cross multiply
    12,493.72x = 18,743.28 × 4,702.51
  4. Step 4: Simplify right side
    12,493.72x = 88,140,461.63
  5. Step 5: Solve for x
    x = 88,140,461.63/12,493.72
  6. Step 6: Final answer
    x = 7,054.78

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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.