Home / 13,533.92-20,317.54-6,424.94

Finding the Fourth Proportional to 13,533.92, 20,317.54 and 6,424.94

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Solution

The fourth proportional to 13,533.92, 20,317.54 and 6,424.94 is: 9,645.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,533.92 : 20,317.54 = 6,424.94 : x
  2. Step 2: Convert to fraction form
    13,533.92/20,317.54 = 6,424.94/x
  3. Step 3: Cross multiply
    13,533.92x = 20,317.54 × 6,424.94
  4. Step 4: Simplify right side
    13,533.92x = 130,538,975.45
  5. Step 5: Solve for x
    x = 130,538,975.45/13,533.92
  6. Step 6: Final answer
    x = 9,645.32

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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.