Home / 7,946.96-11,921.08-2,752.72

Finding the Fourth Proportional to 7,946.96, 11,921.08 and 2,752.72

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Solution

The fourth proportional to 7,946.96, 11,921.08 and 2,752.72 is: 4,129.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,946.96 : 11,921.08 = 2,752.72 : x
  2. Step 2: Convert to fraction form
    7,946.96/11,921.08 = 2,752.72/x
  3. Step 3: Cross multiply
    7,946.96x = 11,921.08 × 2,752.72
  4. Step 4: Simplify right side
    7,946.96x = 32,815,395.34
  5. Step 5: Solve for x
    x = 32,815,395.34/7,946.96
  6. Step 6: Final answer
    x = 4,129.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.