Home / 11,677.86-16,115.04-6,641.70

Finding the Fourth Proportional to 11,677.86, 16,115.04 and 6,641.70

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Solution

The fourth proportional to 11,677.86, 16,115.04 and 6,641.70 is: 9,165.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,677.86 : 16,115.04 = 6,641.70 : x
  2. Step 2: Convert to fraction form
    11,677.86/16,115.04 = 6,641.70/x
  3. Step 3: Cross multiply
    11,677.86x = 16,115.04 × 6,641.70
  4. Step 4: Simplify right side
    11,677.86x = 107,031,261.17
  5. Step 5: Solve for x
    x = 107,031,261.17/11,677.86
  6. Step 6: Final answer
    x = 9,165.31

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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.