Home / 15,807.14-21,820.96-10,067.07

Finding the Fourth Proportional to 15,807.14, 21,820.96 and 10,067.07

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Solution

The fourth proportional to 15,807.14, 21,820.96 and 10,067.07 is: 13,897.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,807.14 : 21,820.96 = 10,067.07 : x
  2. Step 2: Convert to fraction form
    15,807.14/21,820.96 = 10,067.07/x
  3. Step 3: Cross multiply
    15,807.14x = 21,820.96 × 10,067.07
  4. Step 4: Simplify right side
    15,807.14x = 219,673,131.79
  5. Step 5: Solve for x
    x = 219,673,131.79/15,807.14
  6. Step 6: Final answer
    x = 13,897.08

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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.