Home / 12,571.80-18,856.38-6,329.28

Finding the Fourth Proportional to 12,571.80, 18,856.38 and 6,329.28

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Solution

The fourth proportional to 12,571.80, 18,856.38 and 6,329.28 is: 9,493.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,571.80 : 18,856.38 = 6,329.28 : x
  2. Step 2: Convert to fraction form
    12,571.80/18,856.38 = 6,329.28/x
  3. Step 3: Cross multiply
    12,571.80x = 18,856.38 × 6,329.28
  4. Step 4: Simplify right side
    12,571.80x = 119,347,308.81
  5. Step 5: Solve for x
    x = 119,347,308.81/12,571.80
  6. Step 6: Final answer
    x = 9,493.26

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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.