Home / 14,377.64-21,563.22-3,990.20

Finding the Fourth Proportional to 14,377.64, 21,563.22 and 3,990.20

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Solution

The fourth proportional to 14,377.64, 21,563.22 and 3,990.20 is: 5,984.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,377.64 : 21,563.22 = 3,990.20 : x
  2. Step 2: Convert to fraction form
    14,377.64/21,563.22 = 3,990.20/x
  3. Step 3: Cross multiply
    14,377.64x = 21,563.22 × 3,990.20
  4. Step 4: Simplify right side
    14,377.64x = 86,041,560.44
  5. Step 5: Solve for x
    x = 86,041,560.44/14,377.64
  6. Step 6: Final answer
    x = 5,984.40

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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.