Home / 14,145.26-19,521.15-7,857.50

Finding the Fourth Proportional to 14,145.26, 19,521.15 and 7,857.50

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Solution

The fourth proportional to 14,145.26, 19,521.15 and 7,857.50 is: 10,843.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,145.26 : 19,521.15 = 7,857.50 : x
  2. Step 2: Convert to fraction form
    14,145.26/19,521.15 = 7,857.50/x
  3. Step 3: Cross multiply
    14,145.26x = 19,521.15 × 7,857.50
  4. Step 4: Simplify right side
    14,145.26x = 153,387,436.13
  5. Step 5: Solve for x
    x = 153,387,436.13/14,145.26
  6. Step 6: Final answer
    x = 10,843.73

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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.