Home / 13,900.48-20,837.76-4,660

Finding the Fourth Proportional to 13,900.48, 20,837.76 and 4,660

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Solution

The fourth proportional to 13,900.48, 20,837.76 and 4,660 is: 6,985.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,900.48 : 20,837.76 = 4,660 : x
  2. Step 2: Convert to fraction form
    13,900.48/20,837.76 = 4,660/x
  3. Step 3: Cross multiply
    13,900.48x = 20,837.76 × 4,660
  4. Step 4: Simplify right side
    13,900.48x = 97,103,961.60
  5. Step 5: Solve for x
    x = 97,103,961.60/13,900.48
  6. Step 6: Final answer
    x = 6,985.66

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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.