Home / 13,959.21-20,941.38-4,599.78

Finding the Fourth Proportional to 13,959.21, 20,941.38 and 4,599.78

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Solution

The fourth proportional to 13,959.21, 20,941.38 and 4,599.78 is: 6,900.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,959.21 : 20,941.38 = 4,599.78 : x
  2. Step 2: Convert to fraction form
    13,959.21/20,941.38 = 4,599.78/x
  3. Step 3: Cross multiply
    13,959.21x = 20,941.38 × 4,599.78
  4. Step 4: Simplify right side
    13,959.21x = 96,325,740.90
  5. Step 5: Solve for x
    x = 96,325,740.90/13,959.21
  6. Step 6: Final answer
    x = 6,900.52

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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.