Home / 15,286.32-21,085.41-11,043.62

Finding the Fourth Proportional to 15,286.32, 21,085.41 and 11,043.62

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Solution

The fourth proportional to 15,286.32, 21,085.41 and 11,043.62 is: 15,233.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,286.32 : 21,085.41 = 11,043.62 : x
  2. Step 2: Convert to fraction form
    15,286.32/21,085.41 = 11,043.62/x
  3. Step 3: Cross multiply
    15,286.32x = 21,085.41 × 11,043.62
  4. Step 4: Simplify right side
    15,286.32x = 232,859,389.25
  5. Step 5: Solve for x
    x = 232,859,389.25/15,286.32
  6. Step 6: Final answer
    x = 15,233.19

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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.