Home / 13,965.68-19,274.20-7,998

Finding the Fourth Proportional to 13,965.68, 19,274.20 and 7,998

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Solution

The fourth proportional to 13,965.68, 19,274.20 and 7,998 is: 11,038.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,965.68 : 19,274.20 = 7,998 : x
  2. Step 2: Convert to fraction form
    13,965.68/19,274.20 = 7,998/x
  3. Step 3: Cross multiply
    13,965.68x = 19,274.20 × 7,998
  4. Step 4: Simplify right side
    13,965.68x = 154,155,051.60
  5. Step 5: Solve for x
    x = 154,155,051.60/13,965.68
  6. Step 6: Final answer
    x = 11,038.13

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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.