Home / 14,670.78-20,245.64-7,956.36

Finding the Fourth Proportional to 14,670.78, 20,245.64 and 7,956.36

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Solution

The fourth proportional to 14,670.78, 20,245.64 and 7,956.36 is: 10,979.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,670.78 : 20,245.64 = 7,956.36 : x
  2. Step 2: Convert to fraction form
    14,670.78/20,245.64 = 7,956.36/x
  3. Step 3: Cross multiply
    14,670.78x = 20,245.64 × 7,956.36
  4. Step 4: Simplify right side
    14,670.78x = 161,081,600.27
  5. Step 5: Solve for x
    x = 161,081,600.27/14,670.78
  6. Step 6: Final answer
    x = 10,979.76

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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.