Home / 11,767.86-16,240.23-6,988.05

Finding the Fourth Proportional to 11,767.86, 16,240.23 and 6,988.05

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Solution

The fourth proportional to 11,767.86, 16,240.23 and 6,988.05 is: 9,643.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,767.86 : 16,240.23 = 6,988.05 : x
  2. Step 2: Convert to fraction form
    11,767.86/16,240.23 = 6,988.05/x
  3. Step 3: Cross multiply
    11,767.86x = 16,240.23 × 6,988.05
  4. Step 4: Simplify right side
    11,767.86x = 113,487,539.25
  5. Step 5: Solve for x
    x = 113,487,539.25/11,767.86
  6. Step 6: Final answer
    x = 9,643.86

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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.