Home / 13,424.85-20,143.71-5,533.11

Finding the Fourth Proportional to 13,424.85, 20,143.71 and 5,533.11

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Solution

The fourth proportional to 13,424.85, 20,143.71 and 5,533.11 is: 8,302.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,424.85 : 20,143.71 = 5,533.11 : x
  2. Step 2: Convert to fraction form
    13,424.85/20,143.71 = 5,533.11/x
  3. Step 3: Cross multiply
    13,424.85x = 20,143.71 × 5,533.11
  4. Step 4: Simplify right side
    13,424.85x = 111,457,363.24
  5. Step 5: Solve for x
    x = 111,457,363.24/13,424.85
  6. Step 6: Final answer
    x = 8,302.32

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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.