Home / 15,845.05-21,859.31-9,553.93

Finding the Fourth Proportional to 15,845.05, 21,859.31 and 9,553.93

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Solution

The fourth proportional to 15,845.05, 21,859.31 and 9,553.93 is: 13,180.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,845.05 : 21,859.31 = 9,553.93 : x
  2. Step 2: Convert to fraction form
    15,845.05/21,859.31 = 9,553.93/x
  3. Step 3: Cross multiply
    15,845.05x = 21,859.31 × 9,553.93
  4. Step 4: Simplify right side
    15,845.05x = 208,842,269.82
  5. Step 5: Solve for x
    x = 208,842,269.82/15,845.05
  6. Step 6: Final answer
    x = 13,180.28

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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.