Home / 8,439.71-11,646.75-4,663.14

Finding the Fourth Proportional to 8,439.71, 11,646.75 and 4,663.14

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Solution

The fourth proportional to 8,439.71, 11,646.75 and 4,663.14 is: 6,435.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.71 : 11,646.75 = 4,663.14 : x
  2. Step 2: Convert to fraction form
    8,439.71/11,646.75 = 4,663.14/x
  3. Step 3: Cross multiply
    8,439.71x = 11,646.75 × 4,663.14
  4. Step 4: Simplify right side
    8,439.71x = 54,310,367.56
  5. Step 5: Solve for x
    x = 54,310,367.56/8,439.71
  6. Step 6: Final answer
    x = 6,435.10

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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.