Home / 13,130.76-19,694.04-4,814.70

Finding the Fourth Proportional to 13,130.76, 19,694.04 and 4,814.70

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Solution

The fourth proportional to 13,130.76, 19,694.04 and 4,814.70 is: 7,221.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,130.76 : 19,694.04 = 4,814.70 : x
  2. Step 2: Convert to fraction form
    13,130.76/19,694.04 = 4,814.70/x
  3. Step 3: Cross multiply
    13,130.76x = 19,694.04 × 4,814.70
  4. Step 4: Simplify right side
    13,130.76x = 94,820,894.39
  5. Step 5: Solve for x
    x = 94,820,894.39/13,130.76
  6. Step 6: Final answer
    x = 7,221.28

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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.