Home / 13,996.13-19,312.58-7,945.43

Finding the Fourth Proportional to 13,996.13, 19,312.58 and 7,945.43

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Solution

The fourth proportional to 13,996.13, 19,312.58 and 7,945.43 is: 10,963.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,996.13 : 19,312.58 = 7,945.43 : x
  2. Step 2: Convert to fraction form
    13,996.13/19,312.58 = 7,945.43/x
  3. Step 3: Cross multiply
    13,996.13x = 19,312.58 × 7,945.43
  4. Step 4: Simplify right side
    13,996.13x = 153,446,675.81
  5. Step 5: Solve for x
    x = 153,446,675.81/13,996.13
  6. Step 6: Final answer
    x = 10,963.51

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Similar ratio
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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.