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Finding the Fourth Proportional to 11,636.69, 16,061.93 and 6,859.40

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Solution

The fourth proportional to 11,636.69, 16,061.93 and 6,859.40 is: 9,467.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,636.69 : 16,061.93 = 6,859.40 : x
  2. Step 2: Convert to fraction form
    11,636.69/16,061.93 = 6,859.40/x
  3. Step 3: Cross multiply
    11,636.69x = 16,061.93 × 6,859.40
  4. Step 4: Simplify right side
    11,636.69x = 110,175,259.95
  5. Step 5: Solve for x
    x = 110,175,259.95/11,636.69
  6. Step 6: Final answer
    x = 9,467.92

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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.