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Finding the Fourth Proportional to 15,892, 21,934.99 and 10,858.26

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Solution

The fourth proportional to 15,892, 21,934.99 and 10,858.26 is: 14,987.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,892 : 21,934.99 = 10,858.26 : x
  2. Step 2: Convert to fraction form
    15,892/21,934.99 = 10,858.26/x
  3. Step 3: Cross multiply
    15,892x = 21,934.99 × 10,858.26
  4. Step 4: Simplify right side
    15,892x = 238,175,824.52
  5. Step 5: Solve for x
    x = 238,175,824.52/15,892
  6. Step 6: Final answer
    x = 14,987.15

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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.