Home / 13,981.64-20,973.12-4,622.50

Finding the Fourth Proportional to 13,981.64, 20,973.12 and 4,622.50

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Solution

The fourth proportional to 13,981.64, 20,973.12 and 4,622.50 is: 6,933.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,981.64 : 20,973.12 = 4,622.50 : x
  2. Step 2: Convert to fraction form
    13,981.64/20,973.12 = 4,622.50/x
  3. Step 3: Cross multiply
    13,981.64x = 20,973.12 × 4,622.50
  4. Step 4: Simplify right side
    13,981.64x = 96,948,247.20
  5. Step 5: Solve for x
    x = 96,948,247.20/13,981.64
  6. Step 6: Final answer
    x = 6,933.97

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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.