Home / 7,939.60-10,956.91-4,354.81

Finding the Fourth Proportional to 7,939.60, 10,956.91 and 4,354.81

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Solution

The fourth proportional to 7,939.60, 10,956.91 and 4,354.81 is: 6,009.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.60 : 10,956.91 = 4,354.81 : x
  2. Step 2: Convert to fraction form
    7,939.60/10,956.91 = 4,354.81/x
  3. Step 3: Cross multiply
    7,939.60x = 10,956.91 × 4,354.81
  4. Step 4: Simplify right side
    7,939.60x = 47,715,272.12
  5. Step 5: Solve for x
    x = 47,715,272.12/7,939.60
  6. Step 6: Final answer
    x = 6,009.78

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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.