Home / 11,416.63-15,755.55-6,939.65

Finding the Fourth Proportional to 11,416.63, 15,755.55 and 6,939.65

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Solution

The fourth proportional to 11,416.63, 15,755.55 and 6,939.65 is: 9,577.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,416.63 : 15,755.55 = 6,939.65 : x
  2. Step 2: Convert to fraction form
    11,416.63/15,755.55 = 6,939.65/x
  3. Step 3: Cross multiply
    11,416.63x = 15,755.55 × 6,939.65
  4. Step 4: Simplify right side
    11,416.63x = 109,337,967.86
  5. Step 5: Solve for x
    x = 109,337,967.86/11,416.63
  6. Step 6: Final answer
    x = 9,577.08

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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.