Home / 10,553.51-14,630.45-9,991.73

Finding the Fourth Proportional to 10,553.51, 14,630.45 and 9,991.73

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Solution

The fourth proportional to 10,553.51, 14,630.45 and 9,991.73 is: 13,851.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,553.51 : 14,630.45 = 9,991.73 : x
  2. Step 2: Convert to fraction form
    10,553.51/14,630.45 = 9,991.73/x
  3. Step 3: Cross multiply
    10,553.51x = 14,630.45 × 9,991.73
  4. Step 4: Simplify right side
    10,553.51x = 146,183,456.22
  5. Step 5: Solve for x
    x = 146,183,456.22/10,553.51
  6. Step 6: Final answer
    x = 13,851.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.