Home / 13,137.74-19,700.13-4,811.48

Finding the Fourth Proportional to 13,137.74, 19,700.13 and 4,811.48

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Solution

The fourth proportional to 13,137.74, 19,700.13 and 4,811.48 is: 7,214.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,137.74 : 19,700.13 = 4,811.48 : x
  2. Step 2: Convert to fraction form
    13,137.74/19,700.13 = 4,811.48/x
  3. Step 3: Cross multiply
    13,137.74x = 19,700.13 × 4,811.48
  4. Step 4: Simplify right side
    13,137.74x = 94,786,781.49
  5. Step 5: Solve for x
    x = 94,786,781.49/13,137.74
  6. Step 6: Final answer
    x = 7,214.85

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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.