Home / 11,237.50-16,770.80-9,991.98

Finding the Fourth Proportional to 11,237.50, 16,770.80 and 9,991.98

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Solution

The fourth proportional to 11,237.50, 16,770.80 and 9,991.98 is: 14,911.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,237.50 : 16,770.80 = 9,991.98 : x
  2. Step 2: Convert to fraction form
    11,237.50/16,770.80 = 9,991.98/x
  3. Step 3: Cross multiply
    11,237.50x = 16,770.80 × 9,991.98
  4. Step 4: Simplify right side
    11,237.50x = 167,573,498.18
  5. Step 5: Solve for x
    x = 167,573,498.18/11,237.50
  6. Step 6: Final answer
    x = 14,911.99

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.