Home / 14,286.19-21,437.38-7,712.23

Finding the Fourth Proportional to 14,286.19, 21,437.38 and 7,712.23

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Solution

The fourth proportional to 14,286.19, 21,437.38 and 7,712.23 is: 11,572.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,286.19 : 21,437.38 = 7,712.23 : x
  2. Step 2: Convert to fraction form
    14,286.19/21,437.38 = 7,712.23/x
  3. Step 3: Cross multiply
    14,286.19x = 21,437.38 × 7,712.23
  4. Step 4: Simplify right side
    14,286.19x = 165,329,859.41
  5. Step 5: Solve for x
    x = 165,329,859.41/14,286.19
  6. Step 6: Final answer
    x = 11,572.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.