Home / 10,553.64-14,630.62-9,991.86

Finding the Fourth Proportional to 10,553.64, 14,630.62 and 9,991.86

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Solution

The fourth proportional to 10,553.64, 14,630.62 and 9,991.86 is: 13,851.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,553.64 : 14,630.62 = 9,991.86 : x
  2. Step 2: Convert to fraction form
    10,553.64/14,630.62 = 9,991.86/x
  3. Step 3: Cross multiply
    10,553.64x = 14,630.62 × 9,991.86
  4. Step 4: Simplify right side
    10,553.64x = 146,187,106.75
  5. Step 5: Solve for x
    x = 146,187,106.75/10,553.64
  6. Step 6: Final answer
    x = 13,851.82

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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.