Home / 14,247.80-19,661.85-7,874.82

Finding the Fourth Proportional to 14,247.80, 19,661.85 and 7,874.82

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Solution

The fourth proportional to 14,247.80, 19,661.85 and 7,874.82 is: 10,867.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,247.80 : 19,661.85 = 7,874.82 : x
  2. Step 2: Convert to fraction form
    14,247.80/19,661.85 = 7,874.82/x
  3. Step 3: Cross multiply
    14,247.80x = 19,661.85 × 7,874.82
  4. Step 4: Simplify right side
    14,247.80x = 154,833,529.62
  5. Step 5: Solve for x
    x = 154,833,529.62/14,247.80
  6. Step 6: Final answer
    x = 10,867.19

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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.