Home / 8,439.70-11,646.72-4,663.11

Finding the Fourth Proportional to 8,439.70, 11,646.72 and 4,663.11

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Solution

The fourth proportional to 8,439.70, 11,646.72 and 4,663.11 is: 6,435.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.70 : 11,646.72 = 4,663.11 : x
  2. Step 2: Convert to fraction form
    8,439.70/11,646.72 = 4,663.11/x
  3. Step 3: Cross multiply
    8,439.70x = 11,646.72 × 4,663.11
  4. Step 4: Simplify right side
    8,439.70x = 54,309,936.50
  5. Step 5: Solve for x
    x = 54,309,936.50/8,439.70
  6. Step 6: Final answer
    x = 6,435.06

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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.