Home / 14,622.83-20,178.72-8,655.05

Finding the Fourth Proportional to 14,622.83, 20,178.72 and 8,655.05

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Solution

The fourth proportional to 14,622.83, 20,178.72 and 8,655.05 is: 11,943.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,622.83 : 20,178.72 = 8,655.05 : x
  2. Step 2: Convert to fraction form
    14,622.83/20,178.72 = 8,655.05/x
  3. Step 3: Cross multiply
    14,622.83x = 20,178.72 × 8,655.05
  4. Step 4: Simplify right side
    14,622.83x = 174,647,880.98
  5. Step 5: Solve for x
    x = 174,647,880.98/14,622.83
  6. Step 6: Final answer
    x = 11,943.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.