Home / 13,622.16-20,442.96-4,857.15

Finding the Fourth Proportional to 13,622.16, 20,442.96 and 4,857.15

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Solution

The fourth proportional to 13,622.16, 20,442.96 and 4,857.15 is: 7,289.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,622.16 : 20,442.96 = 4,857.15 : x
  2. Step 2: Convert to fraction form
    13,622.16/20,442.96 = 4,857.15/x
  3. Step 3: Cross multiply
    13,622.16x = 20,442.96 × 4,857.15
  4. Step 4: Simplify right side
    13,622.16x = 99,294,523.16
  5. Step 5: Solve for x
    x = 99,294,523.16/13,622.16
  6. Step 6: Final answer
    x = 7,289.19

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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.