Home / 15,703.03-21,670.64-8,629.91

Finding the Fourth Proportional to 15,703.03, 21,670.64 and 8,629.91

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Solution

The fourth proportional to 15,703.03, 21,670.64 and 8,629.91 is: 11,909.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,703.03 : 21,670.64 = 8,629.91 : x
  2. Step 2: Convert to fraction form
    15,703.03/21,670.64 = 8,629.91/x
  3. Step 3: Cross multiply
    15,703.03x = 21,670.64 × 8,629.91
  4. Step 4: Simplify right side
    15,703.03x = 187,015,634.97
  5. Step 5: Solve for x
    x = 187,015,634.97/15,703.03
  6. Step 6: Final answer
    x = 11,909.52

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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.