Home / 13,490.76-20,237.34-3,629.82

Finding the Fourth Proportional to 13,490.76, 20,237.34 and 3,629.82

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Solution

The fourth proportional to 13,490.76, 20,237.34 and 3,629.82 is: 5,445.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,490.76 : 20,237.34 = 3,629.82 : x
  2. Step 2: Convert to fraction form
    13,490.76/20,237.34 = 3,629.82/x
  3. Step 3: Cross multiply
    13,490.76x = 20,237.34 × 3,629.82
  4. Step 4: Simplify right side
    13,490.76x = 73,457,901.48
  5. Step 5: Solve for x
    x = 73,457,901.48/13,490.76
  6. Step 6: Final answer
    x = 5,445.05

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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.