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Finding the Fourth Proportional to 11,101.25, 16,570.90 and 9,699.98

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Solution

The fourth proportional to 11,101.25, 16,570.90 and 9,699.98 is: 14,479.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,101.25 : 16,570.90 = 9,699.98 : x
  2. Step 2: Convert to fraction form
    11,101.25/16,570.90 = 9,699.98/x
  3. Step 3: Cross multiply
    11,101.25x = 16,570.90 × 9,699.98
  4. Step 4: Simplify right side
    11,101.25x = 160,737,415.76
  5. Step 5: Solve for x
    x = 160,737,415.76/11,101.25
  6. Step 6: Final answer
    x = 14,479.21

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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.