Home / 13,385.36-20,082.90-4,621.16

Finding the Fourth Proportional to 13,385.36, 20,082.90 and 4,621.16

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Solution

The fourth proportional to 13,385.36, 20,082.90 and 4,621.16 is: 6,933.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385.36 : 20,082.90 = 4,621.16 : x
  2. Step 2: Convert to fraction form
    13,385.36/20,082.90 = 4,621.16/x
  3. Step 3: Cross multiply
    13,385.36x = 20,082.90 × 4,621.16
  4. Step 4: Simplify right side
    13,385.36x = 92,806,294.16
  5. Step 5: Solve for x
    x = 92,806,294.16/13,385.36
  6. Step 6: Final answer
    x = 6,933.42

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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.