Home / 15,522.84-21,418.02-13,015.08

Finding the Fourth Proportional to 15,522.84, 21,418.02 and 13,015.08

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Solution

The fourth proportional to 15,522.84, 21,418.02 and 13,015.08 is: 17,957.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,522.84 : 21,418.02 = 13,015.08 : x
  2. Step 2: Convert to fraction form
    15,522.84/21,418.02 = 13,015.08/x
  3. Step 3: Cross multiply
    15,522.84x = 21,418.02 × 13,015.08
  4. Step 4: Simplify right side
    15,522.84x = 278,757,243.74
  5. Step 5: Solve for x
    x = 278,757,243.74/15,522.84
  6. Step 6: Final answer
    x = 17,957.88

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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.