Home / 43,130.76-64,696.12-11,966

Finding the Fourth Proportional to 43,130.76, 64,696.12 and 11,966

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Solution

The fourth proportional to 43,130.76, 64,696.12 and 11,966 is: 17,948.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,130.76 : 64,696.12 = 11,966 : x
  2. Step 2: Convert to fraction form
    43,130.76/64,696.12 = 11,966/x
  3. Step 3: Cross multiply
    43,130.76x = 64,696.12 × 11,966
  4. Step 4: Simplify right side
    43,130.76x = 774,153,771.92
  5. Step 5: Solve for x
    x = 774,153,771.92/43,130.76
  6. Step 6: Final answer
    x = 17,948.99

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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.