Home / 7,991.36-11,028.13-4,636.17

Finding the Fourth Proportional to 7,991.36, 11,028.13 and 4,636.17

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Solution

The fourth proportional to 7,991.36, 11,028.13 and 4,636.17 is: 6,397.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,991.36 : 11,028.13 = 4,636.17 : x
  2. Step 2: Convert to fraction form
    7,991.36/11,028.13 = 4,636.17/x
  3. Step 3: Cross multiply
    7,991.36x = 11,028.13 × 4,636.17
  4. Step 4: Simplify right side
    7,991.36x = 51,128,285.46
  5. Step 5: Solve for x
    x = 51,128,285.46/7,991.36
  6. Step 6: Final answer
    x = 6,397.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.