Home / 9,939.30-13,717.53-6,412.77

Finding the Fourth Proportional to 9,939.30, 13,717.53 and 6,412.77

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Solution

The fourth proportional to 9,939.30, 13,717.53 and 6,412.77 is: 8,850.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,939.30 : 13,717.53 = 6,412.77 : x
  2. Step 2: Convert to fraction form
    9,939.30/13,717.53 = 6,412.77/x
  3. Step 3: Cross multiply
    9,939.30x = 13,717.53 × 6,412.77
  4. Step 4: Simplify right side
    9,939.30x = 87,967,364.86
  5. Step 5: Solve for x
    x = 87,967,364.86/9,939.30
  6. Step 6: Final answer
    x = 8,850.46

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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.