Home / 10,181.60-14,031.58-7,939.92

Finding the Fourth Proportional to 10,181.60, 14,031.58 and 7,939.92

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Solution

The fourth proportional to 10,181.60, 14,031.58 and 7,939.92 is: 10,942.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,181.60 : 14,031.58 = 7,939.92 : x
  2. Step 2: Convert to fraction form
    10,181.60/14,031.58 = 7,939.92/x
  3. Step 3: Cross multiply
    10,181.60x = 14,031.58 × 7,939.92
  4. Step 4: Simplify right side
    10,181.60x = 111,409,670.33
  5. Step 5: Solve for x
    x = 111,409,670.33/10,181.60
  6. Step 6: Final answer
    x = 10,942.26

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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.