Home / 12,633.57-18,953.46-9,079.70

Finding the Fourth Proportional to 12,633.57, 18,953.46 and 9,079.70

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Solution

The fourth proportional to 12,633.57, 18,953.46 and 9,079.70 is: 13,621.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,633.57 : 18,953.46 = 9,079.70 : x
  2. Step 2: Convert to fraction form
    12,633.57/18,953.46 = 9,079.70/x
  3. Step 3: Cross multiply
    12,633.57x = 18,953.46 × 9,079.70
  4. Step 4: Simplify right side
    12,633.57x = 172,091,635.99
  5. Step 5: Solve for x
    x = 172,091,635.99/12,633.57
  6. Step 6: Final answer
    x = 13,621.77

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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.