Home / 15,551.84-21,458-13,044.08

Finding the Fourth Proportional to 15,551.84, 21,458 and 13,044.08

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Solution

The fourth proportional to 15,551.84, 21,458 and 13,044.08 is: 17,997.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,551.84 : 21,458 = 13,044.08 : x
  2. Step 2: Convert to fraction form
    15,551.84/21,458 = 13,044.08/x
  3. Step 3: Cross multiply
    15,551.84x = 21,458 × 13,044.08
  4. Step 4: Simplify right side
    15,551.84x = 279,899,868.64
  5. Step 5: Solve for x
    x = 279,899,868.64/15,551.84
  6. Step 6: Final answer
    x = 17,997.86

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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.