Home / 14,146.94-19,520.70-7,859.32

Finding the Fourth Proportional to 14,146.94, 19,520.70 and 7,859.32

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Solution

The fourth proportional to 14,146.94, 19,520.70 and 7,859.32 is: 10,844.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,146.94 : 19,520.70 = 7,859.32 : x
  2. Step 2: Convert to fraction form
    14,146.94/19,520.70 = 7,859.32/x
  3. Step 3: Cross multiply
    14,146.94x = 19,520.70 × 7,859.32
  4. Step 4: Simplify right side
    14,146.94x = 153,419,349.65
  5. Step 5: Solve for x
    x = 153,419,349.65/14,146.94
  6. Step 6: Final answer
    x = 10,844.70

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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.