Home / 14,077.67-21,140.66-12,499.95

Finding the Fourth Proportional to 14,077.67, 21,140.66 and 12,499.95

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Solution

The fourth proportional to 14,077.67, 21,140.66 and 12,499.95 is: 18,771.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,077.67 : 21,140.66 = 12,499.95 : x
  2. Step 2: Convert to fraction form
    14,077.67/21,140.66 = 12,499.95/x
  3. Step 3: Cross multiply
    14,077.67x = 21,140.66 × 12,499.95
  4. Step 4: Simplify right side
    14,077.67x = 264,257,130.47
  5. Step 5: Solve for x
    x = 264,257,130.47/14,077.67
  6. Step 6: Final answer
    x = 18,771.38

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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.