Home / 15,286.19-21,085.22-11,043.47

Finding the Fourth Proportional to 15,286.19, 21,085.22 and 11,043.47

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Solution

The fourth proportional to 15,286.19, 21,085.22 and 11,043.47 is: 15,232.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,286.19 : 21,085.22 = 11,043.47 : x
  2. Step 2: Convert to fraction form
    15,286.19/21,085.22 = 11,043.47/x
  3. Step 3: Cross multiply
    15,286.19x = 21,085.22 × 11,043.47
  4. Step 4: Simplify right side
    15,286.19x = 232,854,074.84
  5. Step 5: Solve for x
    x = 232,854,074.84/15,286.19
  6. Step 6: Final answer
    x = 15,232.98

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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.